The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1980-1985 | Avanti | II | Base |
| 1985 | Avanti | II | GT |
| 1980-1981 | Buick | Century | Base |
| 1980-1981 | Buick | Century | Estate |
| 1980-1981 | Buick | Century | Limited |
| 1980-1981 | Buick | Century | Sport |
| 1980-1981 | Buick | LeSabre | Base |
| 1982 | Buick | LeSabre | Custom |
| 1980-1982 | Buick | LeSabre | Limited |
| 1980-1986 | Buick | Regal | Base |
| 1982-1983 | Buick | Regal | Estate Wagon |
| 1980-1986 | Buick | Regal | Limited |
| 1985 | Buick | Somerset Regal | Base |
| 1985 | Buick | Somerset Regal | Limited |
| 1980-1982 | Checker | Marathon | Base |
| 1980-1982 | Checker | Marathon | Deluxe |
| 1980 | Chevrolet | C10 | Big Ten |
| 1980-1981 | Chevrolet | C10 | Cheyenne |
| 1981-1986 | Chevrolet | C10 | Custom |
| 1980 | Chevrolet | C10 | Custom Deluxe |
| 1981 | Chevrolet | C10 | Deluxe |
| 1980-1986 | Chevrolet | C10 | Scottsdale |
| 1980-1986 | Chevrolet | C10 | Silverado |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1980,1982,1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1980,1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1980-1981 | Chevrolet | C20 | Cheyenne |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1980 | Chevrolet | C20 | Custom Deluxe |
| 1981 | Chevrolet | C20 | Deluxe |
| 1980-1986 | Chevrolet | C20 | Scottsdale |
| 1980-1986 | Chevrolet | C20 | Silverado |
| 1981-1986 | Chevrolet | C20 Suburban | Custom |
| 1980 | Chevrolet | C20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1980,1982,1984-1986 | Chevrolet | C20 Suburban | Scottsdale |
| 1980,1982-1986 | Chevrolet | C20 Suburban | Silverado |
| 1980-1981 | Chevrolet | C30 | Cheyenne |
| 1981-1986 | Chevrolet | C30 | Custom |
| 1980 | Chevrolet | C30 | Custom Deluxe |
| 1981 | Chevrolet | C30 | Deluxe |
| 1980-1986 | Chevrolet | C30 | Scottsdale |
| 1980-1986 | Chevrolet | C30 | Silverado |
| 1980 | Chevrolet | Camaro | Base |
| 1980-1986 | Chevrolet | Camaro | Berlinetta |
| 1985-1986 | Chevrolet | Camaro | Iroc-Z |
| 1980 | Chevrolet | Camaro | Rally Sport |
| 1981-1986 | Chevrolet | Camaro | Sport |
| 1980-1986 | Chevrolet | Camaro | Z28 |
| 1982 | Chevrolet | Camaro | Z28 Indianapolis 500 Pace Car |
| 1986 | Chevrolet | Caprice | Base |
| 1980-1986 | Chevrolet | Caprice | Classic |
| 1986 | Chevrolet | Caprice | Classic Brougham |
| 1981-1982 | Chevrolet | Caprice | Classic Estate |
| 1980-1981 | Chevrolet | Caprice | Classic Landau |
| 1980 | Chevrolet | Caprice | Classic Sport |
| 1980-1982,1984-1986 | Chevrolet | Corvette | Base |
| 1982 | Chevrolet | Corvette | Collector's Edition |
| 1986 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 1980-1986 | Chevrolet | El Camino | Base |
| 1981-1986 | Chevrolet | El Camino | Conquista |
| 1980-1981 | Chevrolet | El Camino | Royal Knight |
| 1980-1986 | Chevrolet | El Camino | SS |
| 1983 | Chevrolet | G10 | Base |
| 1980-1986 | Chevrolet | G10 | Beauville |
| 1981-1984,1986 | Chevrolet | G10 | Bonaventure |
| 1980-1986 | Chevrolet | G10 | Chevy Van |
| 1980-1986 | Chevrolet | G10 | Sportvan |
| 1980-1986 | Chevrolet | G20 | Beauville |
| 1983-1984 | Chevrolet | G20 | Bonaventure |
| 1980-1986 | Chevrolet | G20 | Chevy Van |
| 1980-1981 | Chevrolet | G20 | Nomad |
| 1980-1986 | Chevrolet | G20 | Sportvan |
| 1980-1986 | Chevrolet | G30 | Beauville |
| 1983-1984 | Chevrolet | G30 | Bonaventure |
| 1980-1986 | Chevrolet | G30 | Chevy Van |
| 1980-1986 | Chevrolet | G30 | Hi-Cube |
| 1980-1986 | Chevrolet | G30 | Sportvan |
| 1980-1985 | Chevrolet | Impala | Base |
| 1981-1982 | Chevrolet | Impala | Estate |
| 1980 | Chevrolet | Impala | Sport |
| 1980-1981 | Chevrolet | K10 | Cheyenne |
| 1981-1986 | Chevrolet | K10 | Custom |
| 1980 | Chevrolet | K10 | Custom Deluxe |
| 1981 | Chevrolet | K10 | Deluxe |
| 1980-1986 | Chevrolet | K10 | Scottsdale |
| 1980-1986 | Chevrolet | K10 | Silverado |
| 1981-1986 | Chevrolet | K10 Suburban | Custom |
| 1980 | Chevrolet | K10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | K10 Suburban | Deluxe |
| 1980,1982,1984-1986 | Chevrolet | K10 Suburban | Scottsdale |
| 1980,1982-1983,1985-1986 | Chevrolet | K10 Suburban | Silverado |
| 1980-1981 | Chevrolet | K20 | Cheyenne |
| 1981-1986 | Chevrolet | K20 | Custom |
| 1980 | Chevrolet | K20 | Custom Deluxe |
| 1981 | Chevrolet | K20 | Deluxe |
| 1980-1986 | Chevrolet | K20 | Scottsdale |
| 1980-1983,1985-1986 | Chevrolet | K20 | Silverado |
| 1981-1986 | Chevrolet | K20 Suburban | Custom |
| 1980 | Chevrolet | K20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | K20 Suburban | Deluxe |
| 1980,1982,1984-1986 | Chevrolet | K20 Suburban | Scottsdale |
| 1980,1982-1983,1985-1986 | Chevrolet | K20 Suburban | Silverado |
| 1980-1981 | Chevrolet | K30 | Cheyenne |
| 1981-1986 | Chevrolet | K30 | Custom |
| 1980 | Chevrolet | K30 | Custom Deluxe |
| 1981 | Chevrolet | K30 | Deluxe |
| 1980-1986 | Chevrolet | K30 | Scottsdale |
| 1980-1986 | Chevrolet | K30 | Silverado |
| 1980-1981 | Chevrolet | Malibu | Base |
| 1980-1983 | Chevrolet | Malibu | Classic |
| 1980 | Chevrolet | Malibu | Classic Estate |
| 1980-1981 | Chevrolet | Malibu | Classic Landau |
| 1980 | Chevrolet | Malibu | Classic Sport |
| 1980 | Chevrolet | Malibu | Estate |
| 1980 | Chevrolet | Malibu | Sport |
| 1981-1986 | Chevrolet | Monte Carlo | Base |
| 1983 | Chevrolet | Monte Carlo | CL |
| 1980-1981 | Chevrolet | Monte Carlo | Landau |
| 1986 | Chevrolet | Monte Carlo | LS |
| 1980 | Chevrolet | Monte Carlo | Sport |
| 1983-1986 | Chevrolet | Monte Carlo | SS |
| 1985 | Excalibur | Phaeton | Anniversary |
| 1983-1984,1986 | Excalibur | Phaeton | Base |
| 1980-1986 | GMC | C1500 | Base |
| 1980 | GMC | C1500 | Heavy Half |
| 1980-1986 | GMC | C1500 | High Sierra |
| 1980-1986 | GMC | C1500 | Sierra Classic |
| 1980-1982 | GMC | C1500 | Sierra Grande |
| 1980-1982 | GMC | C1500 | Street Coupe |
| 1980-1986 | GMC | C1500 Suburban | Base |
| 1980-1986 | GMC | C1500 Suburban | High Sierra |
| 1980-1986 | GMC | C1500 Suburban | Sierra Classic |
| 1980-1982 | GMC | C1500 Suburban | Sierra Grande |
| 1980-1986 | GMC | C2500 | Base |
| 1980-1986 | GMC | C2500 | High Sierra |
| 1980-1986 | GMC | C2500 | Sierra Classic |
| 1980-1982 | GMC | C2500 | Sierra Grande |
| 1980-1986 | GMC | C2500 Suburban | Base |
| 1980-1986 | GMC | C2500 Suburban | High Sierra |
| 1980-1986 | GMC | C2500 Suburban | Sierra Classic |
| 1980-1982 | GMC | C2500 Suburban | Sierra Grande |
| 1980-1986 | GMC | C3500 | Base |
| 1980-1986 | GMC | C3500 | High Sierra |
| 1980-1986 | GMC | C3500 | Sierra Classic |
| 1980-1982 | GMC | C3500 | Sierra Grande |
| 1981-1986 | GMC | Caballero | Amarillo |
| 1980-1986 | GMC | Caballero | Base |
| 1981 | GMC | Caballero | Conquista |
| 1980-1986 | GMC | Caballero | Diablo |
| 1980 | GMC | Caballero | Laredo |
| 1981 | GMC | Caballero | Royal Knight |
| 1980-1986 | GMC | G1500 | Rally |
| 1983-1984 | GMC | G1500 | Rally Custom |
| 1980-1986 | GMC | G1500 | Rally STX |
| 1980-1986 | GMC | G1500 | Vandura |
| 1980-1986 | GMC | G2500 | Rally |
| 1983-1984 | GMC | G2500 | Rally Custom |
| 1980-1986 | GMC | G2500 | Rally STX |
| 1980-1986 | GMC | G2500 | Vandura |
| 1980-1986 | GMC | G3500 | Magnavan |
| 1980-1986 | GMC | G3500 | Rally |
| 1980-1986 | GMC | G3500 | Rally Camper Special |
| 1981-1986 | GMC | G3500 | Rally Custom |
| 1980-1986 | GMC | G3500 | Rally STX |
| 1980-1986 | GMC | G3500 | Vandura |
| 1980-1986 | GMC | G3500 | Vandura Special |
| 1980-1986 | GMC | Jimmy | Base |
| 1980-1985 | GMC | Jimmy | High Sierra |
| 1980-1986 | GMC | Jimmy | Sierra Classic |
| 1980-1982 | GMC | Jimmy | Sierra Grande |
| 1980-1982 | GMC | Jimmy | Street Coupe |
| 1980-1986 | GMC | K1500 | Base |
| 1980-1986 | GMC | K1500 | High Sierra |
| 1980-1986 | GMC | K1500 | Sierra Classic |
| 1980-1982 | GMC | K1500 | Sierra Grande |
| 1980-1986 | GMC | K1500 Suburban | Base |
| 1980-1986 | GMC | K1500 Suburban | High Sierra |
| 1980-1986 | GMC | K1500 Suburban | Sierra Classic |
| 1980-1982 | GMC | K1500 Suburban | Sierra Grande |
| 1980-1986 | GMC | K2500 | Base |
| 1980-1986 | GMC | K2500 | High Sierra |
| 1980-1986 | GMC | K2500 | Sierra Classic |
| 1980-1982 | GMC | K2500 | Sierra Grande |
| 1980-1986 | GMC | K2500 Suburban | Base |
| 1980-1986 | GMC | K2500 Suburban | High Sierra |
| 1980-1986 | GMC | K2500 Suburban | Sierra Classic |
| 1980-1982 | GMC | K2500 Suburban | Sierra Grande |
| 1980-1986 | GMC | K3500 | Base |
| 1980-1986 | GMC | K3500 | High Sierra |
| 1980-1986 | GMC | K3500 | Sierra Classic |
| 1980-1982 | GMC | K3500 | Sierra Grande |
| 1983-1986 | GMC | S15 Jimmy | Base |
| 1985 | GMC | S15 Jimmy | High Sierra |
| 1983-1986 | GMC | S15 Jimmy | Sierra Classic |
| 1980 | Oldsmobile | Cutlass | Base |
| 1980-1981 | Oldsmobile | Cutlass | Brougham |
| 1980-1981 | Oldsmobile | Cutlass | LS |