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Hedman Standard Duty HTC Coated Full-Length Headers 1967-91 GM C/K/R/V Series Truck/SUV 396-454

Hedman 66111

500-66111

made in usa
Hedman Standard Duty HTC Coated Full-Length Headers 1967-91 GM C/K/R/V Series Truck/SUV 396-454 $613.99
jegs shipping
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Estimated to ship directly from the manufacturer on 10/22/18
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JEGS Metallic Ceramic Coated Long Tube Headers 1968-1987 Big Block Chevy Truck/SUV (396-502 c.i.)
JEGS 555-300112
$381.94
View Details
Standard Duty HTC Coated Full-Length Headers
  • 1967-91 GM C/K/R/V Series Truck/SUV 396-454
  • 1-3/4" Tube, 3" Collector

  • Hedman 66111 Details

    GM Trucks

  • With A.I.R. system
  • Must use factory BB-Chevy hardware & mounts
  • Must use 1975-Later clutch linkage located at rear of engine
  • Includes parts necessary to retain emission devices (50-state legal for 1975-81 only)
  • Modification to stock exhaust required to retain catalytic converter
  • For 1964-74 vehicles with A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)
  • EO#D167-27

  • Specifications:

    Application
    Automotive
    Tube Direction
    Down Swept
    Gaskets Included
    Yes
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Tuned
    No
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Cross Over Pipe Included
    No
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Weld-Up
    No
    Primary Tube Diameter (in.)
    1 3/4
    Quantity
    Sold as a pair
    Primary Tube Gauge
    18-gauge
    Flange Style
    Standard
    Collector Attachment
    Ball and socket flange
    Collector Diameter (in.)
    3
    CARB EO Number
    D-167-26 (pdf)
    Manufacturer's Part Number:
    66111
    Shipping Weight:
    32.2
    Package Height:
    37
    Package Depth:
    22.5
    Package Width:
    9.5

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

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

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

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

  • Does Hedman 66111 fit your vehicle?

    Narrow Results

    1969 CHEVROLET K20 SUBURBAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1969 GMC K25/K2500 SUBURBAN

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

    1981 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: DELUXE

    1976-1977 GMC K25 SUBURBAN

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

    1982-1986 CHEVROLET C20 SUBURBAN

    • Liter: 6.2
    • SubModel: SILVERADO
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1969-1971 CHEVROLET K20 SUBURBAN

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

    1973 CHEVROLET BLAZER

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

    1987-1988 CHEVROLET R20 SUBURBAN

    • Liter: 6.2
    • SubModel: SILVERADO
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1979-1986 GMC C2500 SUBURBAN

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

    1976-1977 GMC K25 SUBURBAN

    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968 GMC K25/K2500 SUBURBAN

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

    1976-1977 GMC K25 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]~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 )

    1990 CHEVROLET V2500 SUBURBAN

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

    1969-1971 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    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~Early Chassis Only~Elite Replacement Gasket PN[27550]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 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~Elite Replacement Gasket PN[27550]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1990 CHEVROLET V2500 SUBURBAN

    • Liter: 6.2
    • SubModel: SCOTTSDALE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1968 CHEVROLET K20 SUBURBAN

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

    1968 GMC K25/K2500 SUBURBAN

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1987-1988 CHEVROLET V20 SUBURBAN

    • Liter: 6.2
    • SubModel: SCOTTSDALE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1976-1980 CHEVROLET C20 SUBURBAN

    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1987-1988 CHEVROLET R20 SUBURBAN

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

    1976-1978 GMC K25 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]~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~Early Chassis Only~Elite Replacement Gasket PN[27550]~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 )

    1973 GMC K25/K2500 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]~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 GMC C2500 SUBURBAN

    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 GMC K25/K2500 SUBURBAN

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

    1973-1974 GMC K25/K2500 SUBURBAN

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

    1978 GMC C25 SUBURBAN

    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 GMC C25/C2500 SUBURBAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 GMC C25 SUBURBAN

    • EngineType: ALL
    • SubModel: SIERRA GRANDE

    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]~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 SUBURBAN

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

    1990 CHEVROLET V2500 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]~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 )

    1973-1974 GMC C25/C2500 SUBURBAN

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

    1975-1978 GMC C25 SUBURBAN

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

    1987 CHEVROLET V20 SUBURBAN

    • Liter: 6.2
    • SubModel: CUSTOM DELUXE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1975-1978 GMC C25 SUBURBAN

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

    1972-1973 CHEVROLET K20 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1984-1986 CHEVROLET C20 SUBURBAN

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

    1968 GMC K25/K2500 SUBURBAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1982 CHEVROLET C20 SUBURBAN

    • Liter: 6.2
    • SubModel: SCOTTSDALE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    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~Early Chassis Only~Elite Replacement Gasket PN[27550]~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 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]~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 )

    1978 GMC C25 SUBURBAN

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    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~Early Chassis Only~Elite Replacement Gasket PN[27550]~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 )

    1979-1980 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1976-1978 GMC K25 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]~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 )

    1985 CHEVROLET K20 SUBURBAN

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

    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~Elite Replacement Gasket PN[27550]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 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~Elite Replacement Gasket PN[27550]~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~Elite Replacement Gasket PN[27550]~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 )

    1976-1977 GMC K25 SUBURBAN

    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    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~Elite Replacement Gasket PN[27550]~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 K25/K2500 SUBURBAN

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

    1973-1974 CHEVROLET K20 SUBURBAN

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

    1987-1991 GMC R2500 SUBURBAN

    • Liter: 6.2
    • SubModel: BASE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1968 CHEVROLET K20 SUBURBAN

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

    1984 GMC C2500 SUBURBAN

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

    1969 GMC K25/K2500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 CHEVROLET K20 SUBURBAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    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~Elite Replacement Gasket PN[27550]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1990 CHEVROLET V2500 SUBURBAN

    • Liter: 6.2
    • SubModel: SILVERADO
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1987-1991 GMC R2500 SUBURBAN

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

    1980 CHEVROLET C20 SUBURBAN

    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    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]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1982-1986 CHEVROLET C20 SUBURBAN

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

    1985 CHEVROLET K20 SUBURBAN

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

    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~Early Chassis Only~Elite Replacement Gasket PN[27550]~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 )

    1976-1977 GMC K25 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]~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 )

    1976-1977 GMC K25 SUBURBAN

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1982 CHEVROLET C20 SUBURBAN

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

    1973 CHEVROLET BLAZER

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

    1982 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1975-1978 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    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]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K20 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]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: CHEYENNE
    • 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~Early Chassis Only~Elite Replacement Gasket PN[27550]~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 )

    1984 GMC C2500 SUBURBAN

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

    1986 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1982-1986 GMC C2500 SUBURBAN

    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1990 CHEVROLET V2500 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]~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 )

    1973 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]~Designed For Use With A Trans-Dapt Throttle Body Spacer~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • 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]~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 )

    1973-1974 GMC K25/K2500 SUBURBAN

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

    1973-1974 CHEVROLET C20 SUBURBAN

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

    1980 CHEVROLET C20 SUBURBAN

    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 CHEVROLET K20 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]~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 )

    1975-1978 GMC C25 SUBURBAN

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

    1982 CHEVROLET C20 SUBURBAN

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

    1980 CHEVROLET K20 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]~502 Big Block Chevy Will Have Clearance Problems On Some Applications
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 CHEVROLET C20 SUBURBAN

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

    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~Early Chassis Only~Elite Replacement Gasket PN[27550]~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 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]~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 )

    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]~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 )

    1979-1980 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1984-1986 CHEVROLET C20 SUBURBAN

    • Liter: 6.2
    • SubModel: SCOTTSDALE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1989-1991 CHEVROLET R2500 SUBURBAN

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

    1989-1991 CHEVROLET R2500 SUBURBAN

    • Liter: 6.2
    • SubModel: SILVERADO
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1987 CHEVROLET R20 SUBURBAN

    • Liter: 6.2
    • SubModel: CUSTOM DELUXE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )
    Items You Need
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    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.