
- Meticulously Engineered.
- Manufactured to Highest Quality Standards.
- Provided By a Trusted Brand Synonymous with High-Quality Performance, Value and Dependability.
Percy's Seal-4-Good Header Gaskets Big Block Chevy 396-454, 502
760-66013
Specifications:
Percy's Seal-4-Good Reusable Flange Gaskets are multi-layered and made from a special "Dead Soft" aluminum that conforms to header flanges for the ultimate seal. Because made from multiple layers of dead soft metal, Seal-4-Good easily conforms to small imperfections that copper gaskets simply can't, and these gaskets will not blow out or burn out when properly installed.
Does Percy's 66013 fit your vehicle?
1972 CHEVROLET IMPALA
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1980 CHEVROLET K20 PICKUP
- Liter: 7.4
- SubModel: SILVERADO
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1987 CHEVROLET V20 SUBURBAN
- Liter: 7.4
- SubModel: CUSTOM DELUXE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1971 CHEVROLET BEL AIR
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1970-1972 CHEVROLET K20 PICKUP
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1989-1991 CHEVROLET R3500 PICKUP
- Liter: 7.4
- SubModel: SILVERADO
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970 CHEVROLET CHEVELLE
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1973-1974 GMC G35/G3500 VAN
- CC: 7439
- Liter: 7.4
- SubModel: RALLY
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1980 CHEVROLET K30 PICKUP
- Liter: 7.4
- SubModel: CUSTOM DELUXE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1987-1988 CHEVROLET V30 PICKUP
- Liter: 7.4
- SubModel: CUSTOM DELUXE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1972 GMC C25/C2500 SUBURBAN
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1992-1995 GMC C2500 SUBURBAN
- Liter: 7.4
- SubModel: SLE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1979-1980 GMC C1500 SUBURBAN
- Liter: 7.4
- SubModel: SIERRA GRANDE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1976-1978 CHEVROLET K20 PICKUP
- Liter: 7.4
- SubModel: SCOTTSDALE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1968-1969 PONTIAC PARISIENNE
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1988-1995 CHEVROLET C3500 PICKUP
- Liter: 7.4
- SubModel: CHEYENNE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1994-1995 GMC K2500 PICKUP
- Liter: 7.4
- SubModel: SIERRA SL
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1987-1989 GMC R3500 PICKUP
- Liter: 7.4
- SubModel: SIERRA CLASSIC
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1991-1993 GMC C2500 PICKUP
- Liter: 7.4
- SubModel: SIERRA
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1989-1995 GMC G35/G3500 VAN
- Liter: 7.4
- SubModel: RALLY CAMPER SPECIAL
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1965 CHEVROLET MALIBU
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1970 PONTIAC LAURENTIAN
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1975-1976 CHEVROLET IMPALA
- Liter: 7.4
- SubModel: SPORT
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1973 CHEVROLET BLAZER
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1968 GMC K25/K2500 PICKUP
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1972 CHEVROLET BISCAYNE
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1968 GMC C35/C3500 PICKUP
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1969 GMC C35/C3500 PICKUP
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1994-1995 GMC K3500 PICKUP
- Liter: 7.4
- SubModel: SIERRA SL
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1994-1995 GMC C2500 PICKUP
- Liter: 7.4
- SubModel: SIERRA SLT
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970 CHEVROLET CHEVELLE
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1995 CHEVROLET K2500 SUBURBAN
- Liter: 7.4
- SubModel: LS
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1988-1992 CHEVROLET C3500 PICKUP
- Liter: 7.4
- SubModel: SCOTTSDALE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1973 CHEVROLET K10 PICKUP
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1972 CHEVROLET EL CAMINO
- Liter: 6.6
- SubModel: SS
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1970-1972 CHEVROLET CHEVELLE
- CC: 7439
- Liter: 7.4
- SubModel: CONCOURS ESTATE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1975-1976 CHEVROLET CAPRICE
- Liter: 7.4
- SubModel: CLASSIC
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1989-1990 CHEVROLET R3500 PICKUP
- Liter: 7.4
- SubModel: SCOTTSDALE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1989 CHEVROLET R2500 PICKUP
- Liter: 7.4
- SubModel: SCOTTSDALE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1969 CHEVROLET TOWNSMAN
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1968 GMC C25/C2500 SUBURBAN
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1989-1996 GMC G35/G3500 VAN
- Liter: 7.4
- SubModel: VANDURA
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1990-1991 GMC R3500 PICKUP
- Liter: 7.4
- SubModel: SLE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1972 CHEVROLET CHEVELLE
- CC: 6588
- Liter: 6.6
- SubModel: GREENBRIER
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1974 GMC K25/K2500 SUBURBAN
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1972 GMC SPRINT
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1989-1991 CHEVROLET V3500 PICKUP
- Liter: 7.4
- SubModel: CHEYENNE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1972 CHEVROLET CHEVELLE
- CC: 7439
- Liter: 7.4
- SubModel: SS
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1971 CHEVROLET EL CAMINO
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1975-1986 CHEVROLET C20 PICKUP
- Liter: 7.4
- SubModel: SILVERADO
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1972 GMC K25/K2500 PICKUP
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1973-1974 CHEVROLET C10 PICKUP
- CC: 7441
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970 CHEVROLET IMPALA
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1988-1996 CHEVROLET G30 VAN
- Liter: 7.4
- SubModel: SPORTVAN
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1968 CHEVROLET C20 SUBURBAN
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1970-1972 CHEVROLET KINGSWOOD
- CC: 6588
- Liter: 6.6
- SubModel: ESTATE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1970-1971 CHEVROLET C20 SUBURBAN
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1970 CHEVROLET NOVA
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1980-1986 CHEVROLET K30 PICKUP
- Liter: 7.4
- SubModel: SCOTTSDALE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1971 CHEVROLET KINGSWOOD
- CC: 7439
- Liter: 7.4
- SubModel: ESTATE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1963 CHEVROLET IMPALA
- CC: 6997
- Liter: 7.0
- SubModel: BASE
- CUI: 427
- EngineType: V8 ( 7.0 L / 427 )
1968 CHEVROLET C10 PICKUP
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1973 GMC K25/K2500 SUBURBAN
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1969 CHEVROLET K10 PICKUP
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1963 CHEVROLET BEL AIR
- CC: 6997
- Liter: 7.0
- SubModel: BASE
- CUI: 427
- EngineType: V8 ( 7.0 L / 427 )
1978 CHEVROLET K5 BLAZER
- Liter: 7.4
- SubModel: SILVERADO
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1972 CHEVROLET KINGSWOOD
- CC: 7441
- Liter: 7.4
- SubModel: ESTATE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1979-1982 GMC K3500 PICKUP
- Liter: 7.4
- SubModel: SIERRA GRANDE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1992-1995 CHEVROLET C2500 SUBURBAN
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1976 GMC JIMMY
- Liter: 7.4
- SubModel: HIGH SIERRA
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970 CHEVROLET EL CAMINO
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1970-1972 CHEVROLET CHEVELLE
- CC: 6588
- Liter: 6.6
- SubModel: CONCOURS
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1973 CHEVROLET EL CAMINO
- CC: 7441
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1971 CHEVROLET BISCAYNE
- CC: 7441
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1969 CHEVROLET KINGSWOOD
- CC: 6998
- Liter: 7.0
- SubModel: ESTATE
- CUI: 427
- EngineType: V8 ( 7.0 L / 427 )
1973-1974 CHEVROLET C10 SUBURBAN
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1987 CHEVROLET R20 SUBURBAN
- Liter: 7.4
- SubModel: CUSTOM DELUXE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1973 GMC C25/C2500 SUBURBAN
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1990 CHEVROLET C1500 PICKUP
- Liter: 7.4
- SubModel: SCOTTSDALE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1994-1995 CHEVROLET C3500 PICKUP
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1989 CHEVROLET R2500 PICKUP
- Liter: 7.4
- SubModel: SILVERADO
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1975-1976 CHEVROLET IMPALA
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970 CHEVROLET EL CAMINO
- CC: 7441
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1976 CHEVROLET IMPALA
- Liter: 7.4
- SubModel: CUSTOM LANDAU
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1973 CHEVROLET MONTE CARLO
- CC: 7441
- Liter: 7.4
- SubModel: S
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1968 CHEVROLET K30 PICKUP
- CC: 6489
- Liter: 6.5
- SubModel: BASE
- CUI: 396
- EngineType: V8 ( 6.5 L / 396 )
1971-1972 CHEVROLET NOVA
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1979-1986 GMC C2500 SUBURBAN
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1974 CHEVROLET BLAZER
- CC: 7439
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1988-1993 GMC K3500 PICKUP
- Liter: 7.4
- SubModel: SIERRA
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1975-1980 GMC C1500 PICKUP
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970 CHEVROLET CAPRICE
- CC: 6588
- Liter: 6.6
- SubModel: BASE
- CUI: 402
- EngineType: V8 ( 6.6 L / 402 )
1980 CHEVROLET K20 PICKUP
- Liter: 7.4
- SubModel: CUSTOM DELUXE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1972 CHEVROLET CHEVELLE
- CC: 7441
- Liter: 7.4
- SubModel: MALIBU
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1973 CHEVROLET CHEVELLE
- CC: 7441
- Liter: 7.4
- SubModel: DELUXE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1969 CHEVROLET CAMARO
- CC: 6998
- Liter: 7.0
- SubModel: RS
- CUI: 427
- EngineType: V8 ( 7.0 L / 427 )
1975-1978 GMC C15 SUBURBAN
- Liter: 7.4
- SubModel: SIERRA GRANDE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1970-1971 CHEVROLET CORVETTE
- CC: 7441
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1982-1986 CHEVROLET C20 SUBURBAN
- Liter: 7.4
- SubModel: SILVERADO
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
1979-1980 GMC C1500 SUBURBAN
- Liter: 7.4
- SubModel: BASE
- CUI: 454
- EngineType: V8 ( 7.4 L / 454 )
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