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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.
Maximize the sealing performance of your high-output Nissan SR20 engine with the Cometic Multi-Layer Steel (MLS) Head Gasket. Engineered for precision, this 88.5mm bore gasket with a .040-inch compressed thickness is the gold standard for performance builds, including both naturally aspirated and turbocharged applications.
Cometic MLS gaskets are designed to handle the extreme shearing forces between aluminum heads and iron or aluminum blocks. The stainless steel construction provides superior strength and rebound, while the Viton coating—heat resistant up to 482°F—ensures a perfect seal without the need for additional sealants. These gaskets are specifically designed to resist corrosion and maintain integrity under high boost and high compression ratios. Whether you are rebuilding your SR20 for the street or the track, this gasket provides the reliability you need to push your engine to the limit. Get your engine components at GGCRACING.
| Brand | Cometic Gasket |
|---|---|
| Manufacturer part number | C4283-040 |
| GGC SKU | CGSC4283-040 |
| UPC / GTIN | 191070026196 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 23 × 11.5 × 0.02 in |
|---|---|
| Shipping weight | 0.9 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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