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Hedman Standard Duty HTC Coated Full-Length Headers 1967-86 GM K-Series Truck/SUV 283-400

Hedman 66237

500-66237

made in usa
Hedman Standard Duty HTC Coated Full-Length Headers 1967-86 GM K-Series Truck/SUV 283-400 $526.99
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Estimated to ship directly from the manufacturer on 09/21/18
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JEGS Metallic Ceramic Coated Long Tube Headers 1967-1991 Small Block Chevy Truck/SUV (265-400 c.i.)
JEGS 555-300111
$379.94
View Details
Standard Duty HTC Coated Full-Length Headers
  • 1967-86 GM K-Series Truck/SUV 283-400
  • 1-5/8" Tube, 3" Collector

  • Hedman 66237 Details

    GM Trucks

  • Vehicles equipped with large piston AC compressors require the use of bracket #500-20110
  • Without smog injection or injection heads
  • Must modify rotary A/C bracket
  • Includes parts necessary to retain emission devices (50-state legal for 1975-81 only)
  • Some vehicles may encounter clutch shaft interference when cross shaft location is located under or behind the driver's side rear exhaust port. Use #500-69092 without A.I.R. Use #500-69093 with A.I.R.
  • Modification to stock exhaust required to retain catalytic converter
  • For 1964-74 vehicles without A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)
  • EO#D167-27

  • Specifications:

    Application
    Automotive
    Tube Direction
    Down Swept
    Gaskets Included
    Yes
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Tuned
    No
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Cross Over Pipe Included
    No
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Weld-Up
    No
    Primary Tube Diameter (in.)
    1 5/8
    Quantity
    Sold as a pair
    Primary Tube Gauge
    18-gauge
    Flange Style
    Standard
    Collector Attachment
    Ball and socket flange
    Collector Diameter (in.)
    3
    CARB EO Number
    D-167-26 (pdf)
    Manufacturer's Part Number:
    66237
    Shipping Weight:
    23
    Package Height:
    8.25
    Package Depth:
    29
    Package Width:
    16.5

    Hedman's HTC Hi-Tech Coated Headers come pre-coated from the factory with a protective ceramic-metallic finish. This coating provides a durable, shiny finish that helps lower under hood temperatures. Hedman Hedders pioneered the automotive application of ceramic-metallic coatings in the early 1980s. Previously exclusive to the aerospace industry, Hedman Hedders recognized the coating's potential to improve both the lifespan and functionality of exhaust headers while adding performance, flow and protection. Made in the USA.

    Features:
  • Coating offers protection up to 1400°.
  • Won't chip, peel, or "blue" like chrome.
  • Superior heat insulation.
  • Increased exhaust velocity for more power.

    NOTE: Installing coated headers on an engine during the break-in period will cause discoloration. The use of factory manifolds or an old set of headers is recommended while breaking in an engine.

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

  • Does Hedman 66237 fit your vehicle?

    Narrow Results

    1981 CHEVROLET K20 SUBURBAN

    • Liter: 4.8
    • SubModel: DELUXE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1975-1979 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1980 CHEVROLET K10 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: SILVERADO
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979-1981 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1988-1991 GMC K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1980 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 GMC K15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1980 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1981 GMC JIMMY

    • Liter: 4.1
    • SubModel: HIGH SIERRA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1980 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1981 GMC K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET K10 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1967 GMC K15/K1500 SUBURBAN

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1991 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1981 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 GMC K15/K1500 PICKUP

    • EngineType: V8 ( 4.6 L / 283 )
    • SubModel: BASE

    1975-1978 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1980 GMC K2500 SUBURBAN

    • Liter: 4.8
    • SubModel: SIERRA CLASSIC
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1976 GMC JIMMY

    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1981 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969-1970 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1977 CHEVROLET K20 SUBURBAN

    • Liter: 4.8
    • SubModel: SILVERADO
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1982-1986 GMC K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 4.1
    • SubModel: HIGH SIERRA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970-1972 GMC K15/K1500 SUBURBAN

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 GMC K15/K1500 SUBURBAN

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 4.1
    • SubModel: SIERRA CLASSIC
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1990-1991 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: WT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 CHEVROLET BLAZER

    • CC: 5737
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1980 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 CHEVROLET BLAZER

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 GMC K15/K1500 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1975-1978 GMC K25 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1980 GMC K2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1987 CHEVROLET BLAZER

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1979 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1986 GMC JIMMY

    • EngineType: ALL
    • SubModel: SILVERADO

    1975-1981 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 4.1
    • SubModel: SIERRA GRANDE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1971 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1979 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 CHEVROLET K10 PICKUP

    • CC: 5358
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1972 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1988-1991 GMC K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 GMC K15/K1500 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1988-1991 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1978 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 CHEVROLET BLAZER

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 GMC K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 CHEVROLET K20 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 GMC K15/K1500 SUBURBAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1977 GMC K25 SUBURBAN

    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1967 CHEVROLET K10 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1978-1981 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: STREET COUPE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982-1986 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 GMC K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1978 CHEVROLET K20 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972 CHEVROLET BLAZER

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1979-1980 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1990-1991 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET BLAZER

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1988-1991 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET K10 SUBURBAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1980 CHEVROLET K20 SUBURBAN

    • Liter: 4.8
    • SubModel: SILVERADO
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1968 GMC K25/K2500 SUBURBAN

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1980 GMC K2500 SUBURBAN

    • Liter: 4.8
    • SubModel: SIERRA GRANDE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1973 CHEVROLET BLAZER

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 GMC K15/K1500 SUBURBAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1977-1978 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972-1974 CHEVROLET BLAZER

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1987-1991 CHEVROLET BLAZER

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 CHEVROLET K10 SUBURBAN

    • CC: 5736
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1991 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: SIERRA SLX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 CHEVROLET K10 SUBURBAN

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SILVERADO
    • 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~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1982-1986 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1982-1986 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 CHEVROLET K20 SUBURBAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1982 GMC JIMMY

    • EngineType: ALL
    • SubModel: STREET COUPE

    1982-1991 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Modify Rotary A/C Bracket~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1981 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979 GMC K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~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]~This Model Is Recommended For Use With Lift Kits
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )
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