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COMP Cams 503-8

COMP Cams Positive Stop PTFE Seal Guide Size: .530"

249-503-8

Estimated to ship directly from the manufacturer on 01/28/19

$14.99
COMP Cams Positive Stop PTFE Seal Guide Size: .530" $14.99
Out of stock
QTY
Positive Stop PTFE Seal
  • Guide Size: .530''
  • Valve Size: 11/32''
  • 8/pkg
  • COMP Cams 503-8 Details

    Positive Stop PTFE Seals

  • 1 Year Limited Warranty

  • Specifications:

    Diameter (in.)
    0.34375
    Machine Work Required
    Yes
    Quantity
    Sold as a set of 8
    Valve Guide Diameter (in.)
    0.53
    Valve Stem Diameter (in.)
    0.344
    Valve Stem Seal Material
    PTFE
    Valve Stem Seal Type
    Positive stop
    Manufacturer's Part Number:
    503-8

    Comp Cams offers a complete line of valve stem seals, from the stock GM O-ring to the positive stop PTFE seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. O-ring seals use the standard retainer and oil splash shield. Umbrella seals are normally used when a larger-than-stock diameter spring is used; in the case of a double spring, positive stop PTFE seals are used. There is also a smaller diameter Viton seal available for triple spring applications. O-rings and umbrella seals require no machining, but PTFE seals require the heads to be disassembled so the top guides can be machined with a special .530" diameter cutter. Whenever you're planning an overhaul or cam change, don't forget the valve seals!

    Features:
  • Excellent Sealing Properties
  • O-Ring & Umbrella Seals Require No Machining

  • Does COMP Cams 503-8 fit your vehicle?

    Narrow Results
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    1971 FORD MUSTANG

    • CC: 7030
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • SubModel: MACH I
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1973-1974 CHEVROLET CAPRICE

    • CC: 6556
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: ESTATE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1977 CHEVROLET C30 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981 CHEVROLET CAMARO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 BUICK ELECTRA

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: LIMITED

    1975 MERCURY MONTEGO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: VILLAGER

    1981 OLDSMOBILE CUTLASS

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.3
    • SubModel: LS
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1970-1971 FORD RANCHERO

    • CC: 7030
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • Aspiration: N
    • SubModel: SQUIRE
    • Engine Vin: J
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970 FORD MUSTANG

    • CC: 5753
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1966 CHEVROLET K10 PICKUP

    • CC: 5358
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: X
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1989 CHEVROLET R2500 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1973 CHEVROLET G10 VAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: SPORTVAN
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1990-1993 FORD BRONCO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • SubModel: XL
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1971-1977 FORD MAVERICK

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 OLDSMOBILE 442

    • CC: 6555
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1983-1989 BUICK SKYLARK

    • CC: 2474
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 2.5
    • SubModel: CUSTOM
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1977 CADILLAC FLEETWOOD

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: FORMAL

    1986 CADILLAC FLEETWOOD

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: BROUGHAM

    1982-1986 CHEVROLET C10 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 PONTIAC FIERO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: BASE

    1972-1973 CHEVROLET CAMARO

    • CC: 5737
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 CHEVROLET NOVA

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V8 ( 4.3 L / 262 )

    1978-1980 PONTIAC BONNEVILLE

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 OLDSMOBILE CUTLASS SUPREME

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1976 PONTIAC GRAND LEMANS

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1968 FORD FALCON

    • CC: 4727
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.7
    • SubModel: FUTURA
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1972 OLDSMOBILE F85

    • CC: 7456
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1970 FORD MUSTANG

    • CC: 5753
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • Aspiration: N
    • SubModel: GRANDE
    • Engine Vin: M
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979 CHEVROLET CAMARO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1980 OLDSMOBILE TORONADO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1962-1965 CHEVROLET CORVETTE

    • CC: 5358
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1970 FORD MUSTANG

    • CC: 7014
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1980-1982 OLDSMOBILE OMEGA

    • CC: 2474
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1969-1970 FORD GALAXIE 500

    • CC: 7030
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • SubModel: XL
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1972-1973 CHEVROLET K30 PICKUP

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1966-1967 MERCURY VOYAGER

    • CC: 4727
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1972-1973 CHEVROLET BLAZER

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970 MERCURY CYCLONE

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: GT
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1988-1995 CHEVROLET K2500 PICKUP

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970 CHEVROLET CHEVELLE

    • CC: 6556
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: CONCOURS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973-1974 CHEVROLET MALIBU

    • CC: 5737
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 CHEVROLET MALIBU

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1977 OLDSMOBILE OMEGA

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1980-1982 FORD F-250

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1980 CHEVROLET BLAZER K5

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC GRAND LEMANS

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1977 OLDSMOBILE DELTA 88

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: ROYALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 FORD LTD

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 MERCURY MONTEGO

    • CC: 5753
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • Aspiration: N
    • SubModel: MX
    • Engine Vin: Q
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979 CADILLAC FLEETWOOD

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • SubModel: BROUGHAM
    • CUI: 425
    • EngineType: V8 ( 7.0 L / 425 )

    1975-1979 CHEVROLET K10 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: CUSTOM DELUXE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968-1970 OLDSMOBILE DELTA 88

    • CC: 5737
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1980 CHEVROLET MONZA

    • CC: 2474
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1974 FORD RANCHERO

    • CC: 7539
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.5
    • SubModel: SQUIRE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1970 FORD RANCH WAGON

    • CC: 5753
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1974 MERCURY MONTEREY

    • CC: 6556
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 CHEVROLET MALIBU

    • CC: 5737
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 PONTIAC LEMANS

    • CC: 5737
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974 CHEVROLET CAPRICE

    • CC: 5737
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET CHEVELLE

    • CC: 4638
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.6
    • SubModel: 300 DELUXE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1989-1991 CHEVROLET V3500 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET K20 SUBURBAN

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970 FORD E-300 ECONOLINE

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: CHATEAU WAGON
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972-1973 PONTIAC LEMANS

    • CC: 7457
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1974 CHEVROLET EL CAMINO

    • CC: 6556
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: SS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1986 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1971 FORD TORINO

    • CC: 5753
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • Aspiration: N
    • SubModel: COBRA
    • Engine Vin: M
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1970-1971 PONTIAC GTO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: THE JUDGE

    1978-1979 CHEVROLET G30 VAN

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: HI-CUBE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 OLDSMOBILE CUTLASS CRUISER

    • CC: 2474
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 2.5
    • SubModel: BROUGHAM
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1977 MERCURY COUGAR

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: BROUGHAM

    1970-1971 CHEVROLET G30 VAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 MERCURY MONTEGO

    • CC: 7539
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.5
    • Aspiration: N
    • SubModel: MX
    • Engine Vin: C
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1976 CHEVROLET MONTE CARLO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: LANDAU

    1987-1988 CHEVROLET CAPRICE

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: CLASSIC LS BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 PONTIAC LEMANS

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 PONTIAC LEMANS

    • CC: 5733
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 CHEVROLET K20 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1989-1991 CHEVROLET R3500 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982-1983 FORD BRONCO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: XLS
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970 FORD MUSTANG

    • CC: 7014
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Q
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1979-1980 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979 CHEVROLET CAMARO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: BERLINETTA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1964-1967 MERCURY COMET

    • CC: 4727
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1973 CHEVROLET EL CAMINO

    • CC: 6555
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 CHEVROLET C20 SUBURBAN

    • CC: 5031
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1986 CHEVROLET K30 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 MERCURY MONTEGO

    • CC: 5753
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1982 FORD E-350 ECONOLINE

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975 BUICK APOLLO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1967-1969 PONTIAC FIREBIRD

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: 400

    1975-1980 CHEVROLET K10 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET C20 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 MERCURY COLONY PARK

    • CC: 7539
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1978 FORD F-350

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.8
    • SubModel: NORTHLAND
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1978 FORD F-100

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: NORTHLAND
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970-1971 FORD TORINO

    • CC: 7030
    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 7.0
    • SubModel: GT
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    Items You Need

    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.