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Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.
Achieve a superior seal in your high-output engine with the Cometic Multi-Layer Steel (MLS) Head Gasket. Specifically engineered for Chevy Small Block applications with a 4.165-inch bore, this .040-inch compressed thickness gasket features integrated steam holes to ensure optimal cooling and engine longevity. Built to handle the extreme cylinder pressures of performance builds, this gasket is the gold standard for reliability.
Whether you are running a street-strip machine or a dedicated track car, this gasket provides the resilience needed to prevent blowouts and maintain compression. It is the perfect choice for 1980-era Chevy, GMC, and Oldsmobile V8 platforms requiring precise fitment. Experience the professional difference with premium engine components from GGCRACING.
…and 199 additional fitments. Contact us to confirm yours.
| Brand | Cometic Gasket |
|---|---|
| Manufacturer part number | C5248-040 |
| GGC SKU | CGSC5248-040 |
| UPC / GTIN | 191070007232 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 24 × 9.5 × 0.25 in |
|---|---|
| Shipping weight | 0.8 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 1980-1985 | Avanti | II | Base |
| 1985 | Avanti | II | GT |
| 1980-1981 | Buick | Century | Base, Estate, Limited, Sport |
| 1982 | Buick | LeSabre | Custom, Limited, Limited Edition F/E |
| 1980-1981 | Buick | Regal | Base, Limited |
| 1986 | Buick | Regal | Base, Limited |
| 1980-1982 | Checker | Marathon | Base, Deluxe |
| 1980 | Chevrolet | C10 | Custom Deluxe, Big Ten |
| 1980-1981 | Chevrolet | C10 | Cheyenne |
| 1980-1986 | Chevrolet | C10 | Scottsdale, Silverado |
| 1981 | Chevrolet | C10 | Deluxe |
| 1981-1986 | Chevrolet | C10 | Custom |
| 1980 | Chevrolet | C10 Suburban | Custom Deluxe, Scottsdale, Silverado |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1982 | Chevrolet | C10 Suburban | Scottsdale |
| 1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1980 | Chevrolet | C20 | Custom Deluxe |
| 1980-1981 | Chevrolet | C20 | Cheyenne |
| 1980-1986 | Chevrolet | C20 | Scottsdale, Silverado |
| 1981 | Chevrolet | C20 | Deluxe |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1980 | Chevrolet | C20 Suburban | Silverado, Custom Deluxe, Scottsdale |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
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