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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 $19.99
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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    1969-1970 CHEVROLET K20 SUBURBAN

    • 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 )

    1972 CHEVROLET C20 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 )

    1975-1980 CHEVROLET G20 VAN

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

    1968-1971 CHEVROLET C10 SUBURBAN

    • 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: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1980 CHEVROLET G20 VAN

    • 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 )

    1979-1982 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 GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983 GMC G25/G2500 VAN

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

    1975-1979 CHEVROLET K20 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 )

    1994 GMC K1500

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

    1975-1976 GMC SPRINT

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

    1970-1971 CHEVROLET G20 VAN

    • 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 )

    1970-1971 CHEVROLET C30 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 )

    1977-1979 CHEVROLET C20 SUBURBAN

    • 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 )

    1988 CHEVROLET R30 PICKUP

    • Fitment_Note: Race Size Square Ports 1.45 Inch x 1.55 Inch 1/8 Inch Thick
    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • 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: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1989 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: IROC-Z
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978 BUICK LESABRE

    • 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 )

    1975-1978 GMC C25 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 )

    1981 CHEVROLET K20 SUBURBAN

    • 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 )

    1977-1987 GMC JIMMY

    • 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 )

    1988-1995 GMC C2500 PICKUP

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

    1969-1971 CHEVROLET C30 PICKUP

    • 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: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1974 CHEVROLET MALIBU

    • 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: CLASSIC
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 GMC C25/C2500 PICKUP

    • 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: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1974 GMC C1500 PICKUP

    • CC: 5737
    • 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 CHEVROLET C10 SUBURBAN

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1967 CHEVROLET K20 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 )

    1987 CHEVROLET R20 SUBURBAN

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

    1977 CHEVROLET MONZA

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

    1977-1978 GMC K25 SUBURBAN

    • 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 )

    1973 CHEVROLET EL CAMINO

    • 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: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1977 BUICK CENTURY

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

    1978-1979 PONTIAC LEMANS

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

    1983-1996 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: RALLY STX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1978 GMC G35/G3500 VAN

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

    1970 CHEVROLET CAMARO

    • 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 )

    1982-1986 CHEVROLET C10 SUBURBAN

    • 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 )

    1993 GMC K1500

    • 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 )

    1977-1979 GMC G25/G2500 VAN

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

    1975-1977 CHEVROLET K10 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 )

    1983-1987 PONTIAC GRAND PRIX

    • 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 )

    1974 CHEVROLET MALIBU

    • 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: CLASSIC
    • Engine Vin: T
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1995 CHEVROLET G20 VAN

    • 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 )

    1979 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 )

    1980 CHEVROLET C10 PICKUP

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

    1984 CHEVROLET IMPALA

    • 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 )

    1977-1980 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 )

    1979-1986 GMC K2500 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 CHEVROLET MALIBU

    • 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 )

    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 )

    1987-1989 GMC R3500 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 )

    1978-1981 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 )

    1985 PONTIAC FIREBIRD

    • 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 )

    1969 CHEVROLET CAMARO

    • 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 )

    1970 CHEVROLET BROOKWOOD

    • 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 )

    1985 CHEVROLET K20 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 )

    1968 CHEVROLET K30 PICKUP

    • 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: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1988-1990 CHEVROLET CAMARO

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

    1980 CHEVROLET K10 PICKUP

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

    1976 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: LT
    • 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: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985-1987 CHEVROLET CAMARO

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

    1975 CHEVROLET LAGUNA

    • 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 )

    1988-1995 CHEVROLET C2500 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 )

    1979-1981 CHEVROLET MALIBU

    • 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 )

    1977-1979 GMC K1500 PICKUP

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

    1979 CHEVROLET C20 SUBURBAN

    • 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 )

    1980 CHEVROLET IMPALA

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

    1979 CHEVROLET IMPALA

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

    1994-1995 CHEVROLET C2500 PICKUP

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

    1983-1984 CHEVROLET G20 VAN

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

    1969-1973 GMC C15/C1500 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 )

    1957-1958 CHEVROLET TRUCK

    • 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 )

    1976-1978 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: RALLY STX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 BUICK SKYLARK

    • 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 )

    1974 CHEVROLET C30 PICKUP

    • CC: 5737
    • 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 SUBURBAN

    • 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 )

    1979 GMC C2500 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 )

    1968-1969 CHEVROLET CAMARO

    • 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 )

    1978-1979 PONTIAC SUNBIRD

    • 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 )

    1979-1986 GMC C1500 SUBURBAN

    • 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 )

    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 )

    1989-1990 CHEVROLET CAPRICE

    • 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 )

    1995 CHEVROLET C1500 SUBURBAN

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

    1981 CHEVROLET K10 SUBURBAN

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

    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 )

    1977 PONTIAC VENTURA

    • 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 BUICK REGAL

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

    1961-1966 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 )

    1957 CHEVROLET TWO-TEN SERIES

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

    1987 CHEVROLET V10 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 )

    1973-1974 CHEVROLET BEL AIR

    • 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: T
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 CHEVROLET CAPRICE

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

    1982-1986 GMC C2500 SUBURBAN

    • 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 )

    1975-1978 GMC K25 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 )

    1994-1995 CHEVROLET C2500 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 )

    1975 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

    1977 PONTIAC VENTURA

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

    1958-1961 CHEVROLET CORVETTE

    • 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 )

    1977-1978 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: LT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )
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