Cometic Pontiac 400/428/455 V8 .030in MLS Cylinder Head Gasket - 4.300in Bore
SKU C5712-030
MPN cgsC5712-030
$98.94 · Available to order





Cometic Pontiac 400/428/455 V8 .030in MLS Cylinder Head Gasket - 4.300in Bore
Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.027". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.
| Years | Make | Model | Submodel | Drive |
|---|---|---|---|---|
| 1970 | Pontiac | Tempest | GT | — |
| 1969–1970 | Pontiac | LeMans | Safari | — |
| 1975 | Pontiac | Grand LeMans | Safari | — |
| 1977 | Pontiac | Grand Prix | LJ | — |
| 1968–1970 | Pontiac | Bonneville | Safari | — |
| 1968–1969 | Pontiac | Tempest | Safari | — |
| 1969–1979 | Pontiac | Firebird | Trans Am | — |
| 1978 | Pontiac | Bonneville | Safari | — |
| 1968–1970 | Pontiac | Catalina | Ventura | — |
| 1968–1977 | Pontiac | Firebird | Base | — |
| 1971 | Pontiac | LeMans | T37 | — |
| 1968–1977 | Pontiac | LeMans | Base | — |
| 1973–1975 | Pontiac | Grand Am | Base | — |
| 1971–1974 | Pontiac | Grandville | Base | — |
| 1975 | Buick | LeSabre | Custom | — |
| 1968–1969 | Pontiac | Firebird | 400 | — |
| 1975–1977 | Pontiac | Grand Prix | SJ | — |
| 1975 | Oldsmobile | Delta 88 | Base | — |
| 1975 | Oldsmobile | 98 | Regency | — |
| 1968–1974 | Pontiac | Grand Prix | Base | — |
| 1968–1978 | Pontiac | Bonneville | Base | — |
| 1975 | Oldsmobile | Custom Cruiser | Base | — |
| 1968–1969 | Pontiac | Tempest | Custom | — |
| 1972–1974 | Pontiac | LeMans | Luxury | — |
| 1968–1978 | Pontiac | Catalina | Safari | — |
| 1976–1978 | Pontiac | Bonneville | Brougham | — |
| 1975–1977 | Pontiac | Grand LeMans | Base | — |
| 1968–1970 | Pontiac | Executive | Safari | — |
| 1973–1975 | Pontiac | LeMans | Safari | — |
| 1971–1978 | Pontiac | Grand Safari | Base | — |
| 1967–1973 | Pontiac | GTO | Base | — |
| 1968–1970 | Pontiac | Executive | Base | — |
| 1970–1977 | Pontiac | LeMans | Sport | — |
| 1968–1970 | Pontiac | Tempest | Base | — |
| 1976 | Pontiac | Firebird | Esprit | — |
| 1970–1979 | Pontiac | Firebird | Formula | — |
| 1968–1978 | Pontiac | Catalina | Base | — |
| 1975 | Oldsmobile | Delta 88 | Royale | — |
| 1970–1971 | Pontiac | GTO | The Judge | — |
| 1975 | Pontiac | Grandville | Brougham | — |
| 1975 | Oldsmobile | Custom Cruiser | Panel | — |
| 1975 | Oldsmobile | 98 | Luxury | — |
| 1977 | Pontiac | LeMans | Safari | — |
| 1971–1972 | Pontiac | Catalina | Brougham | — |
| 1970–1974 | Pontiac | Firebird | Esprit | — |
| 1975 | Pontiac | Grand Prix | LJ | — |
| 1977 | Pontiac | Grand LeMans | Safari | — |
| 1974 | Pontiac | LeMans | Safari Luxury | — |
| 1976–1977 | Pontiac | Grand Prix | Base | — |
| 1975 | Buick | LeSabre | Base | — |
| Category | Engine Components |
|---|---|
| Sub-Category | Head Gaskets |
| UPC | 191070137472 |
| CARB Approved | Yes |
| Prop 65 Warning | Y |
| Special Order | Yes |
| Weight | 0.75 lb |
| Dimensions (L×W×H) | 24 × 9.75 × 0.13 in |
Related
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- Pontiac Bonneville parts
- Pontiac Firebird parts
- Pontiac Catalina parts
- Pontiac Grand Am parts
- Pontiac Grandville parts
- Buick LeSabre parts
- Oldsmobile Delta 88 parts
- Oldsmobile 98 parts