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Hedman 69097

Standard-Duty Uncoated Headers 1967-83 Small Block Chevy Truck/SUV/P30 Van

Hedman 69097

500-69097

jegs shipping
FREE Shipping
Ships 12/06/16 if Ordered Today
Hedman 69097 Standard-Duty Uncoated Headers 1967-83 Small Block Chevy Truck/SUV/P30 Van $272.99
Standard-Duty Uncoated Headers
  • 1967-83 Small Block Chevy Truck/SUV/P30 Van
  • Tube Size: 1-5/8"
  • Collector Size: 3"

  • Hedman 69097 Details

    GM Trucks

    1967-83 C10 PICKUP, C20 PICKUP, C30 PICKUP, C15/C1500, C25/C2500, C35/C3500, C1O SUBURBAN, C15/C1500 SUBURBAN, C20 SUBURBAN, C25/C2500 SUBURBAN, K10 SUBURBAN, K20 SUBURBAN, K15/K1500 SUBURBAN, K25/K2500 SUBURBAN, BLAZER, JIMMY 283-400ci; 2WD & 4WD
    1967-1991 CHEVROLET P30 VAN 283-400ci; CLASS A MOTORHOMES

  • Vehicles equipped with large piston AC compressors require the use of bracket #20110. Sold seperately.
  • Without smog injection or injection heads.
  • Will fit with angle plug heads (Chevy aluminum only).
  • Must modify rotary A/C bracket.
  • Elite replacement gasket #27520.
  • Designed for use with a Trans-Dapt throttle body spacer.
  • Includes parts necessary to retain emission devices. (50 State)
  • Modification to stock exhaust required to retain catalytic converter.
  • For vehicles 1964 through 1974 without A.I.R. systems, considered as O.E.M. replacement parts when existing emission controls are not removed from vehicle.
  • 1975-1991 only, 50 state legal for these years.
  • EO#D167-27

  • Specifications:

    Tube Size
    1.625
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Engine Make/Size
    Chevy Small Block (262-400)
    Tube Direction
    Down Swept
    Port Shape
    Rectangle
    Material
    Steel
    Engine Make/Size
    Chevy Small Block 350
    Coating/Finish
    Painted
    Collector Diameter (in.)
    3
    Gaskets Included
    Yes
    Bolts/Studs Included
    Yes
    CARB EO Number
    D-167 (pdf)
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    Oval
    Header Finish
    Painted
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 5/8
    Primary Tube Gauge
    18-gauge
    Quantity
    Sold as a pair
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    69097

    With Hedman's guaranteed fit and lifetime warranty, how can you go wrong with these headers? Most are fabricated from 18-gauge steel with mandrel bent primary tubes and 1/4" flanges; some utilize thicker 14-gauge or 16-gauge tubing with 3/8" flanges. The black paint Hedman applies to uncoated headers is not high-temperature; it is pre-installation protection only. For the ultimate protection from the elements, click the following link to view Hedman's own HTC Hi-Tech Coated Headers. Made in the USA.

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Does Hedman 69097 fit your vehicle?

    Narrow Results

    1968 GMC C25/C2500 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1975-1977 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1982 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967-1968 GMC K1500 PICKUP

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1979-1981 GMC C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET C10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 GMC K25/K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1975-1979 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: CHEYENNE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1982 CHEVROLET BLAZER K5

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1982 CHEVROLET C30 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 CHEVROLET K5 BLAZER

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 CHEVROLET BLAZER K5

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969-1972 CHEVROLET C10 PICKUP

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 CHEVROLET C20 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 GMC C15/C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET C10 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981 CHEVROLET K30 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 GMC C25/C2500 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 GMC C25/C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1979-1982 GMC C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 CHEVROLET K10 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1970-1974 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET C30 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1968 GMC C25/C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1981 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1977 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982 GMC C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 CHEVROLET C20 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 GMC C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET C20 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970-1971 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1982 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1982 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1967-1968 CHEVROLET K10 PICKUP

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1971 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1979 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1967 CHEVROLET C10 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1975-1978 CHEVROLET K5 BLAZER

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: CHEYENNE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 GMC K15/K1500 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1975-1980 CHEVROLET C20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 GMC C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1980 GMC K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1981-1982 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET BLAZER

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET C10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983 CHEVROLET C10 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: F
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981-1982 CHEVROLET C20 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1977 GMC K15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1978 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1982 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 CHEVROLET C20 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1977-1979 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1967-1968 GMC C25/C2500 PICKUP

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1977-1982 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1982 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1979 CHEVROLET C10 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982 CHEVROLET C10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 CHEVROLET BLAZER K5

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET C20 PICKUP

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1974 GMC C25/C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET C30 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 GMC K25/K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1968 GMC K25/K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1977-1978 GMC C25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 CHEVROLET K10 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1975-1977 CHEVROLET C10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1980 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1977 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1982 CHEVROLET C20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1981-1982 CHEVROLET C20 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 GMC K25/K2500 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969-1971 CHEVROLET C20 PICKUP

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1977-1978 GMC K15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1982 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 GMC C15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 GMC C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1978 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Clutch Shaft Interference When Cross Shaft Under Drivers Side Exhaust Port~Includes Parts Necessary To Retain Emission Devices (50 States)~Emission - 50 State Legal~Early Chassis Only~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads~A/C Equipped Vehicles Require Large Piston Compressor Bracket PN[20110]
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )
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