
Cometic Gasket · New
Cometic GM LS1 SB 4.160 inch Bore .066 inch MLS Head Gasket
MPN C5318-066 · Store SKU cgsC5318-066
Supplier stock checked 11/7/2026, 10:56:24 AM UTC. Adding a part does not reserve it.
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Product details
The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block. MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel GM LS1/LS2/LS3/LS6 Gen-3/4 Small Block V8 .066in. MLS Cylinder Head Gasket; 4.160in. Bore GM LS Gen-3/4 Small Block V8 .066" MLS Cylinder Head Gasket, 4.160" Bore GM LS1/LS2/LS3/LS6 Gen-3/4 Small Block V8 Cylinder Head Gasket GM LS Gen-3/4 Small Block V8 Cylinder Head Gasket
Manufacturer fitment & guides
Check C5318-066 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y