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Spectre 421

Exhaust Gaskets SB-Chevy 265-400

Spectre 421

865-421

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Spectre 421 Exhaust Gaskets SB-Chevy 265-400 $21.99
Exhaust Gaskets
  • SB-Chevy 265-400
  • Rectangle Port: 1.45" x 1.55"
  • 1/8" Thick

  • Specifications:

    Gasket Material
    Compressed ceramic fiber
    Weight (lbs.)
    0.5 lb (0.2 kg)
    Package Quantity
    2
    Thickness
    0.125 in (3 mm)
    Package Contents
    2 Gaskets
    Product Style
    Spectre Gaskets
    Manufacturer's Part Number:
    421

    All Spectre Header Gaskets are made from Compressed Ceramic Fiber (CCF). CCF far exceeds typical non-asbestos type gaskets and will not deteriorate or crack from excessive heat or pressure. Made extra thick to provide superior sealing even on uneven or warped header flanges.


    Features:
  • Extra Thick 1/8" or Standard 1/16" Compressed Ceramic Fiber
  • Will Not Deteriorate or Crack from Excessive Heat & Pressure
  • Conforms to Warped Header Flanges
  • Stops Header Leaks
  • 2 Per Package

  • Does Spectre 421 fit your vehicle?

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    Aspiration

    1973-1974 CHEVROLET CAPRICE

    • CC: 5737
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1976 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • EngineType: ALL
    • SubModel: BASE

    1976 GMC C1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1986 CHEVROLET K30 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 CHEVROLET BLAZER

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974-1979 CHEVROLET EL CAMINO

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1989 CHEVROLET G10 VAN

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CHEVY VAN
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1986 PONTIAC PARISIENNE

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1995 GMC K2500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC V1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K35 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968-1972 CHEVROLET CHEVELLE

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: NOMAD
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1994 GMC K1500

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA SPECIAL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K35 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1976 CHEVROLET MALIBU

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970-1972 CHEVROLET TOWNSMAN

    • CC: 6556
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978-1979 BUICK SKYLARK

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 GMC K1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET CAPRICE

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET CHEVELLE

    • CC: 6556
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981 CHEVROLET K30 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982-1986 GMC C1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET LAGUNA

    • CC: 5737
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1982 GMC G35/G3500 VAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • EngineType: ALL
    • SubModel: RALLY

    1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BIG TEN
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1993 GMC G15/G1500 VAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: RALLY
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC R1500 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968 CHEVROLET CHEVELLE

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: 300
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1983-1984 GMC G15/G1500 VAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: RALLY CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET CAPRICE

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: CLASSIC SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 CHEVROLET K10 PICKUP

    • CC: 5736
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K25 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970-1973 CHEVROLET EL CAMINO

    • CC: 6555
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: SS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981 CHEVROLET MALIBU

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 CHEVROLET V20 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET R20 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1976 GMC SPRINT

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SP
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1976-1980 CHEVROLET C20 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 GMC G15/G1500 VAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: VANDURA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 GMC G35/G3500 VAN

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

    1995 GMC K1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979 GMC CABALLERO

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 GMC G15/G1500 VAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 CHEVROLET BEL AIR

    • CC: 6556
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 GMC SPRINT

    • CC: 6556
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1980 CHEVROLET CAMARO

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1979 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1986 GMC K1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET K10 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1979-1980 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1979 GMC JIMMY

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985 CHEVROLET IMPALA

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • Aspiration: N
    • SubModel: SILVERADO
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 CHEVROLET C10 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982-1983 CHEVROLET CAMARO

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1993 GMC K3500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1967-1968 GMC C15/C1500 SUBURBAN

    • CC: 5358
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1985 CHEVROLET G30 VAN

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BEAUVILLE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1995 CHEVROLET K3500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 GMC C25/C2500 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967-1968 GMC K35/K3500 PICKUP

    • CC: 5358
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1992-1993 CHEVROLET BLAZER

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • EngineType: ALL
    • SubModel: CHEYENNE

    1992-1993 CHEVROLET C2500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET MALIBU

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: SPORT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1979 CHEVROLET NOVA

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1979 PONTIAC GRAND PRIX

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: LJ
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1976 GMC C1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1965-1967 CHEVROLET EL CAMINO

    • CC: 4638
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1976 CHEVROLET MALIBU

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: LANDAU
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1980 GMC K1500 SUBURBAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET EL CAMINO

    • CC: 6555
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 GMC SPRINT

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET CHEVY II

    • CC: 5736
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: NOVA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET C10 PICKUP

    • CC: 4638
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1977-1979 CHEVROLET C10 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1971 GMC G35/G3500 VAN

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 GMC C1500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 PONTIAC GRAND PRIX

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: LJ
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981-1986 CHEVROLET C10 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1980 PONTIAC FIREBIRD

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: ESPRIT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 CHEVROLET NOVA

    • CC: 5737
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET C10 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • EngineType: ALL
    • SubModel: BASE

    1990-1995 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: WT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1986 CHEVROLET CAPRICE

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CLASSIC BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 CHEVROLET EL CAMINO

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 CHEVROLET G10 VAN

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CHEVY VAN
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972 CHEVROLET BISCAYNE

    • CC: 6556
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978-1982 GMC JIMMY

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: STREET COUPE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K3500 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1982 CHEVROLET CAPRICE

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: CLASSIC ESTATE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1990-1995 CHEVROLET C1500 PICKUP

    • CC: 5031
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: WT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977 OLDSMOBILE OMEGA

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969-1971 CHEVROLET CHEVELLE

    • CC: 5736
    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: CONCOURS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
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