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Flowtech Standard Headers

Flowtech 31530

387-31530

jegs shipping
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Easy Returns
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Lowest Price Guarantee
Lowest Price Guarantee
Flowtech Standard Headers $328.95
Standard Headers
  • Chevy 396-454
  • 1968-81 Chevy/GMC 1/2-Ton & 3/4-Ton 4WD
  • 1968-87 GM 1/2, 3/4, 1-Ton & Blazer/Jimmy 2WD
  • 1973-81 Blazer/Jimmy K5, Suburban 4WD
  • 1973-91 Chevy/GMC Suburban 2WD
  • 1.75'' Tube
  • 3'' Collector
  • Ceramic Coateded

  • Flowtech 31530 Details

    GM Truck/SUV

  • Must modify stock exhaust to retain catalytic converters
  • Applications with oxygen sensors use reducers 387-10110 for 3'' three bolt flange
  • Must use original factory Big Block engine frame mounts and hardware

  • 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
    3-bolt flange
    Collector Diameter (in.)
    3
    Manufacturer's Part Number:
    31530FLT
    Shipping Weight:
    33
    Package Height:
    37.5
    Package Depth:
    19.5
    Package Width:
    9.5

    FlowTech Headers are the perfect combination of quality, performance and value. All Flowtech Headers are sold in pairs and are available in mild steel, 304 or 409 stainless steel with either a natural, painted, ceramic coated or polished finish.

    Does Flowtech 31530 fit your vehicle?

    Narrow Results

    1977-1980 GMC C1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HEAVY HALF
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 GMC C1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 GMC C1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: INDY HAULER
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 GMC C1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC K25/K2500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1976-1978 GMC K25 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 GMC C2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 CHEVROLET K20 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1972 GMC C25/C2500 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1987 GMC R3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1977 GMC K25 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985-1986 GMC C2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 CHEVROLET C20 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1973-1974 CHEVROLET K20 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET C10 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1977-1978 CHEVROLET K5 BLAZER

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1977 GMC K25 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1989-1991 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1981 CHEVROLET C30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC C35/C3500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1979-1986 GMC C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1977 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980-1981 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 CHEVROLET K10 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1973-1974 GMC K25/K2500 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980-1981 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1984 GMC C2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1984 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985-1986 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 CHEVROLET K20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC C25/C2500 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1989 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C10 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C15 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 GMC K25/K2500 SUBURBAN

    • CC: 7439
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987-1988 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1984 GMC C2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1972 GMC C35/C3500 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1982 GMC C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981-1984 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1982-1984 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 CHEVROLET K10 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1968 CHEVROLET K30 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1969 GMC K35/K3500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1976 CHEVROLET K5 BLAZER

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 GMC C2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC C1500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1986 CHEVROLET C30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C30 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1978-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BIG TEN
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C20 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 CHEVROLET K20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C15 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1990 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SLE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C15 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC K35/K3500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1976 GMC JIMMY

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC C1500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1978 GMC C35/C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC K1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 CHEVROLET K20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985-1986 GMC C2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 GMC C25/C2500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1973-1974 CHEVROLET K30 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1984 GMC C2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 GMC C25/C2500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1976 GMC JIMMY

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 CHEVROLET C10 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1980 GMC K1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC K1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975-1981 CHEVROLET C20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )
    Items You Need
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    Some parts are not legal for use in California or other states with similar laws / regulations

    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.