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Hedman 62826

Stainless Steel Headers Chevy/GMC Truck/SUV Big Block Chevy

Hedman 62826

500-62826

made in usa
jegs shipping
FREE Shipping
Ships 01/09/17 if Ordered Today
$1,105.99
$1,080.99
ON SALE - $25.00 OFF
Hedman 62826 Stainless Steel Headers Chevy/GMC Truck/SUV Big Block Chevy $1,080.99
Stainless Steel Headers
  • Chevy/GMC Truck/SUV Big Block Chevy
  • Full Length
  • 1-3/4" Tube Diameter
  • 3" Collector
  • HTC Coated

  • Hedman 62826 Details

    GM Trucks

    1968-87 C20 PICKUP, C30 PICKUP, C25/C2500, C35/C3500, R20, R30, R2500, R3500, V20, V30, V2500, V3500; 396-502; 2WD
    1968-81 K20 PICKUP, K25/K2500, R20, R2500, V20, V2500 396-454; 4WD
    1968-81 BLAZER, JIMMY Engine Swap to: 396-502cid; 4WD
    1968-91 BLAZER, JIMMY Engine Swap to: 396-502cid; 2WD
    1968-91 K25/K2500 SUBURBAN, R20 SUBURBAN, R2500 SUBURBAN, V20 SUBURBAN, V2500 SUBURBAN 396-502; 4WD
    1968-91 C25/C2500 SUBURBAN, C20 SUBURBAN, R20 SUBURBAN, R2500 SUBURBAN, V20 SUBURBAN, V2500 SUBURBAN 396-502; 2WD

  • Without smog injection or injection heads.
  • Must use factory big block chevy hardware & mounts.
  • Must use 1975 and later model clutch linkage located at rear of engine.
  • Due to clyinder heads (aluminum) generation 6 engines, 502 BB Chevy will have clearance problems on some applications. Bottom of hedder flanges may hit head bolts. Notching may be necessary.
  • Elite replacement gasket #27550.
  • K5 Blazer up to 91.
  • Not legal for sale or use in California on pollution controlled motor vehicles.
  • Modification to stock exhaust required to retain catalytic converter.
  • Not applicable or intended for street or highway use. Legal only for racing vehicles which may never be used upon a highway, check footnotes also.
  • Not legal for sale or use in California

  • Specifications:

    Tube Size
    1.75
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Engine Make/Size
    Chevy Big Block (396-454)
    Tube Direction
    Down Swept
    Port Shape
    Round
    Material
    Stainless Steel
    Coating/Finish
    Silver Ceramic
    Collector Diameter (in.)
    3
    Gaskets Included
    Yes
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    Square
    Header Finish
    Silver ceramic coated
    Header Material
    Stainless steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 3/4
    Primary Tube Gauge
    16-gauge
    Quantity
    Sold as a pair
    Reducers Included
    No
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    62826

    Hedman Stainless Steel Headers are constructed from 304 stainless steel instead of less expensive 409. 304 stainless steel has more Chromium & Nickel than 409, which provides superior heat and corrosion resistance. Additionally, 304 will not rust or flake like 409 stainless steel. This means Hedman Stainless Steel Headers will retain a cleaner look and endure extreme temperatures better than headers made of 409 stainless steel.

    Hedman Stainless Steel Headers use sturdy laser cut 3/8" flanges, and all primary tubes have smooth-flowing mandrel bends. They're also available with Hedman's HTC Ceramic-Metallic coating for a shiny finish and lower underhood temperatures.

    Does Hedman 62826 fit your vehicle?

    Narrow Results

    1975-1980 CHEVROLET C10 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1972 GMC C25/C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1987-1988 CHEVROLET R20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985-1986 GMC C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974-1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1972 GMC C15/C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1978-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BIG TEN
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 GMC K25 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 CHEVROLET BLAZER

    • CC: 7439
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC K25/K2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 GMC C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 GMC C25/C2500 SUBURBAN

    • CC: 7439
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1983 GMC C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987-1988 CHEVROLET V20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1977 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981-1986 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: INDY HAULER
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 CHEVROLET K10 SUBURBAN

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1971 CHEVROLET C20 PICKUP

    • CC: 6588
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1970-1971 CHEVROLET K10 SUBURBAN

    • CC: 6588
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1975-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1988-1990 GMC C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 CHEVROLET BLAZER

    • CC: 7439
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1982-1986 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1980 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HEAVY HALF
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 GMC C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 CHEVROLET C30 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1987-1988 CHEVROLET V20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 CHEVROLET K20 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1969 CHEVROLET C20 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 CHEVROLET C10 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1972 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1974 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987-1991 GMC R2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC K25/K2500 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1988-1990 GMC C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA SLX
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1977 GMC K25 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C15 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC C15/C1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC C15/C1500 SUBURBAN

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1972 GMC K15/K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1968 GMC C25/C2500 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1986 CHEVROLET C20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1978-1980 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: STREET COUPE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 CHEVROLET C10 PICKUP

    • CC: 6588
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1987-1989 GMC R2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC K1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET C20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1981 CHEVROLET C20 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R20 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 GMC K15/K1500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 GMC C1500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1974 CHEVROLET K20 SUBURBAN

    • CC: 7439
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC C35/C3500 PICKUP

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1973 GMC JIMMY

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1979 CHEVROLET C30 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC K25/K2500 SUBURBAN

    • CC: 6489
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1974 CHEVROLET BLAZER

    • CC: 7439
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1972 CHEVROLET C10 SUBURBAN

    • CC: 6588
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1986 GMC C2500 SUBURBAN

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Not Legal For Sale Or Use In California On Pollution Controlled Vehicles~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1983 GMC C3500 PICKUP

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Elite Replacement Gasket PN[27550]~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~Stainless Steel
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )
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