Ultra-Seal Header Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block Round Ports, 1.92 Inch Mr Gasket
Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate Gasket failure.
Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities.
High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications.
For original equipment replacement, high performance street, drag race and oval track use.
- Has A Steel Core With Graphite Facing
- Graphite Facing Has Excellent Thermo-conductivity
- Can Be Trimmed If Necessary For Modified Port App
Details:
- Collector Gaskets Included: No
- Emission Code: 5
- Gasket Line: Ultra-Seal
- Material: Ultra-seal
- Port Shape: Round
- Port Size: 1.92
- Warranty: Manufacturer's Limited 90 Day Warranty
CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 1965–1967 | Chevrolet | Impala | SS |
| 1965–1972 | Chevrolet | Chevelle | SS |
| 1965–1972 | Chevrolet | Biscayne | — |
| 1965–1974 | Chevrolet | Corvette | — |
| 1965–1975 | Chevrolet | Bel Air | — |
| 1965–1976 | Chevrolet | Impala | — |
| 1966–1972 | Chevrolet | Caprice | — |
| 1966–1975 | Chevrolet | El Camino | — |
| 1967 | Chevrolet | Camaro | — |
| 1967 | Chevrolet | Camaro | RS |
| 1967–1972 | Chevrolet | Camaro | SS |
| 1968 | Chevrolet | Chevy II | Nova |
| 1968–1974 | GMC | C15/C1500 Suburban | — |
| 1968–1974 | Chevrolet | K20 Pickup | — |
| 1968–1974 | GMC | C15/C1500 Pickup | — |
| 1968–1974 | Chevrolet | K30 Pickup | — |
| 1968–1974 | GMC | C25/C2500 Pickup | — |
| 1968–1974 | Chevrolet | K10 Suburban | — |
| 1968–1974 | Chevrolet | C20 Suburban | — |
| 1968–1974 | GMC | C35/C3500 Pickup | — |
| 1968–1974 | Chevrolet | C30 Pickup | — |
| 1968–1974 | Chevrolet | K10 Pickup | — |
| 1968–1974 | Chevrolet | C10 Pickup | — |
| 1968–1974 | GMC | K25/K2500 Suburban | — |
| 1968–1974 | Chevrolet | El Camino | Custom |
| 1968–1974 | GMC | K35/K3500 Pickup | — |
| 1968–1974 | Chevrolet | C10 Suburban | — |
| 1968–1974 | GMC | C25/C2500 Suburban | — |
| 1968–1974 | Chevrolet | K20 Suburban | — |
| 1968–1974 | GMC | K15/K1500 Pickup | — |
| 1968–1974 | Chevrolet | C20 Pickup | — |
| 1968–1974 | GMC | K25/K2500 Pickup | — |
| 1968–1974 | GMC | K15/K1500 Suburban | — |
| 1968–1974 | Chevrolet | El Camino | SS |
| 1969 | Chevrolet | Camaro | RS |
| 1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1969 | Chevrolet | Camaro | — |
| 1969–1970 | Chevrolet | Estate | — |
| 1969–1972 | Chevrolet | Chevelle | Greenbrier |
| 1969–1972 | Chevrolet | Chevelle | Malibu |
| 1969–1972 | Chevrolet | Chevelle | Nomad |
| 1969–1972 | Chevrolet | Kingswood | Estate |
| 1969–1972 | Chevrolet | Chevelle | Concours Estate |
| 1969–1972 | Chevrolet | Kingswood | — |
| 1969–1972 | Chevrolet | Chevelle | Concours |
| 1969–1972 | Chevrolet | Nova | — |
| 1969–1972 | Chevrolet | Brookwood | — |
| 1969–1972 | Chevrolet | Townsman | — |
| 1970–1971 | Chevrolet | P20 Van | — |
| 1970–1974 | Chevrolet | Monte Carlo | — |
| 1987 | GMC | R2500 Suburban | High Sierra |
| 1987–1988 | Chevrolet | R20 Suburban | Scottsdale |
| 1987–1988 | Chevrolet | V30 | Scottsdale |
| 1987–1988 | Chevrolet | V20 Suburban | Silverado |
| 1987–1988 | Chevrolet | R20 | Silverado |
| 1987–1988 | Chevrolet | R20 Suburban | Silverado |
| 1987–1988 | Chevrolet | V30 | Silverado |
| 1987–1988 | Chevrolet | R30 | Silverado |
| 1987–1988 | Chevrolet | R30 | Scottsdale |
| 1987–1988 | Chevrolet | R20 | Custom Deluxe |
| 1987–1988 | Chevrolet | V30 | Custom Deluxe |
| 1987–1988 | Chevrolet | V20 Suburban | Scottsdale |
| 1987–1989 | GMC | R2500 Suburban | Sierra Classic |
| 1987–1989 | GMC | R2500 | High Sierra |
| 1987–1989 | GMC | V3500 | High Sierra |
| 1987–1989 | GMC | R3500 | High Sierra |
| 1987–1989 | GMC | V3500 | Sierra Classic |
| 1987–1989 | GMC | R3500 | Sierra Classic |
| 1987–1989 | GMC | R2500 | Sierra Classic |
| 1987–1990 | GMC | V3500 | — |
| 1987–1990 | GMC | R2500 Suburban | — |
| 1988 | Chevrolet | R30 | Cheyenne |
| 1988 | Chevrolet | R20 | Cheyenne |
| 1988 | Chevrolet | V30 | Cheyenne |
| 1988–1990 | Chevrolet | C3500 | Silverado |
| 1988–1990 | Chevrolet | K3500 | Silverado |
| 1988–1990 | Chevrolet | G30 | Sportvan |
| 1988–1990 | Chevrolet | G30 | Chevy Van |
| 1988–1990 | GMC | K3500 | Sierra SLX |
| 1988–1990 | Chevrolet | G30 | Hi-Cube |
| 1988–1990 | GMC | G3500 | Magnavan |
| 1988–1990 | Chevrolet | K3500 | Scottsdale |
| 1988–1990 | Chevrolet | C3500 | Scottsdale |
| 1988–1990 | Chevrolet | K3500 | Cheyenne |
| 1988–1990 | Chevrolet | C3500 | Cheyenne |
| 1988–1990 | GMC | C3500 | Sierra SLX |
| 1988–1990 | GMC | C3500 | Sierra |
| 1988–1990 | GMC | K3500 | Sierra |
| 1988–1990 | Chevrolet | G30 | Beauville |
| 1988–1990 | GMC | K3500 | Sierra SLE |
| 1988–1990 | GMC | C3500 | Sierra SLE |
| 1989 | Chevrolet | R2500 | Cheyenne |
| 1989–1990 | GMC | G3500 | Rally |
| 1989–1990 | Chevrolet | R3500 | Cheyenne |
| 1989–1990 | Chevrolet | V3500 | Cheyenne |
| 1989–1990 | GMC | G3500 | Vandura |
| 1989–1990 | GMC | G3500 | Vandura Special |
| 1989–1990 | GMC | G3500 | Rally Camper Special |
| 1989–1990 | Chevrolet | V3500 | Scottsdale |
| 1989–1990 | GMC | G3500 | Rally STX |
