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Flowtech 11530

Standard Headers

Flowtech 11530

387-11530

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Flowtech 11530 Standard Headers $162.95
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
  • Painted Black

  • Flowtech 11530 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:

    Tube Diameter
    1.75
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Engine Make/Size
    Chevy Big Block (396-454)
    Tube Direction
    Down Swept
    Port Shape
    Round
    Coating/Finish
    Painted
    Material
    Mild Steel
    Gaskets Included
    Yes
    Finish
    Black Paint
    Header Style
    Long Tube
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    3-bolt flange
    Cross Over Pipe Included
    No
    Header Finish
    Painted
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 3/4
    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:
    11530FLT

    Performance Plus Fuel Economy at a Price You Can Afford!

    These headers are made of 16-gauge tubing that's welded to O-ring port exhaust flanges on one end and mandrel-formed collectors on the other. You get a premium performance-minded design with a budget-minded attitude!




    Features
  • 16-gauge (.049" thick) cold-rolled mild steel (except stainless steel were noted)
  • Precision engineered for performance, fuel economy, and fit
  • Mandrel-formed plenum increases flow for more power
  • Leakproof O-ring port seals quality tested by FlowTech
  • Finished with black paint or ceramic coating, polished available for some applications

  • Does Flowtech 11530 fit your vehicle?

    Narrow Results

    1976 GMC K1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC K1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET K20 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • 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
    • Liter: 7.4
    • SubModel: SILVERADO
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1981 GMC K3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • 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
    • Liter: 7.4
    • SubModel: CHEYENNE
    • 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
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 GMC K25 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K5 BLAZER

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • 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
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1981 GMC K3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 CHEVROLET C10 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 GMC K25/K2500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1978 GMC C25 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • 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
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 CHEVROLET C30 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1980 GMC C1500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1978 CHEVROLET K5 BLAZER

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET K30 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC C15/C1500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1978 GMC K25 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 CHEVROLET C20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 GMC K15/K1500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • 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
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 GMC C25/C2500 SUBURBAN

    • CC: 7439
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1972 GMC C25/C2500 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1976-1978 GMC K25 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1968 CHEVROLET C20 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC K25/K2500 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • 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
    • Liter: 7.4
    • SubModel: DELUXE
    • 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
    • Liter: 7.4
    • SubModel: CHEYENNE
    • 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
    • Liter: 7.4
    • SubModel: CUSTOM
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • 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
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • Aspiration: N
    • SubModel: SILVERADO
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • 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
    • 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
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1969 CHEVROLET K10 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1978 GMC C15 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 GMC JIMMY

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC C1500 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • 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
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1986 CHEVROLET C20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1982 GMC C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • 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
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1989 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • 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
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 GMC K25/K2500 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987-1988 CHEVROLET R20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 CHEVROLET C20 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1977 GMC C1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: INDY HAULER
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET C20 PICKUP

    • CC: 6588
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1973-1974 CHEVROLET C10 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1986 GMC C2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • 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
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1980 GMC C1500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: HEAVY HALF
    • 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
    • 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
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R2500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • 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
    • 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
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1980 CHEVROLET K30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • 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
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • 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
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC C35/C3500 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976 CHEVROLET K10 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1969 GMC K35/K3500 PICKUP

    • CC: 6489
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1982 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • 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
    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R30 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1983 GMC C3500 PICKUP

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • 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
    • Liter: 7.4
    • SubModel: BASE
    • 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
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 CHEVROLET R20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • 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
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • 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
    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 GMC K35/K3500 PICKUP

    • CC: 7441
    • Fitment_Note: Must Use Original Factory Big Block Engine Frame Mounts & Hardware
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )
    11530 - FlowTech Headers is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from I bought these to install on my 66 C10 that I swapped a Gen V 454 into. They installed with no problem at all, My only complaint I really have is passenger side collector is aimed slightly down so with my purple hornies installed, I might have to heat it up and try to bend it up. But I have had that same problem with the hooker headers I installed in my 81 K10.
    Date published: 2017-01-16
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