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Hedman 69136

Standard Duty HTC Coated Full-Length Headers 1968-87 GM C/R Series Truck/SUV 396-454

Hedman 69136

500-69136

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Hedman 69136 Standard Duty HTC Coated Full-Length Headers 1968-87 GM C/R Series Truck/SUV 396-454 $529.99
Standard Duty HTC Coated Full-Length Headers
  • 1968-87 GM C/R Series Truck/SUV 396-454
  • 2" Tube, 3" Collector

  • Hedman 69136 Details

    GM Trucks

    Without smog injection or injection heads

    Specifications:

    Tube Size
    2
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Engine Make/Size
    Chevy Big Block (396-454)
    Tube Direction
    Down Swept
    Coating/Finish
    Metallic Ceramic
    Port Shape
    Rectangle
    Material
    Steel
    Gaskets Included
    Yes
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    Round
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    2
    Primary Tube Gauge
    18-gauge
    Quantity
    Sold as a pair
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    69136

    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 69136 fit your vehicle?

    Narrow Results

    1970-1971 CHEVROLET C30 PICKUP

    • CC: 6588
    • 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~Without Smog Injection Or Injection Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1977 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: INDY HAULER
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 GMC C2500 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981-1986 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1980 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: HEAVY HALF
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 CHEVROLET C20 PICKUP

    • CC: 6588
    • 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~Without Smog Injection Or Injection Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1975-1978 GMC C25/C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Without Smog Injection Or Injection Heads
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1976 GMC JIMMY

    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1981 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1972 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1968 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1980 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 GMC JIMMY

    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1982-1986 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET C20 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~Without Smog Injection Or Injection Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1973-1974 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1969 GMC C25/C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1972 GMC C25/C2500 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1971 GMC SPRINT

    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1986 GMC C2500 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 GMC C35/C3500 PICKUP

    • CC: 7441
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 GMC C35/C3500 PICKUP

    • CC: 6588
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1975-1978 GMC C25 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1978 GMC C25/C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1987 CHEVROLET R20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1978-1980 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: STREET COUPE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1990 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SLE
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1981 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC C25/C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1986 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R3500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R3500 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~Without Smog Injection Or Injection Heads
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 GMC C1500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1980 GMC C1500 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~Without Smog Injection Or Injection Heads
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1989-1991 CHEVROLET 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1977 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981-1986 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R30 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1982 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981-1986 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R30 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R3500 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~Without Smog Injection Or Injection Heads
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1978 GMC C25 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET C30 PICKUP

    • CC: 6588
    • 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~Without Smog Injection Or Injection Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1986 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 GMC JIMMY

    • 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1986 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • 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~Must Use Factory Big Block Hardware And Mounts~Must Use 1975 And Later Model Clutch Linkage Located At Rear Of Engine~Early Chassis Only~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1984-1986 CHEVROLET C20 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~Without Smog Injection Or Injection Heads~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R30 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1986 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SILVERADO
    • 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~Without Smog Injection Or Injection Heads~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )
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