Cometic Gasket · New
Cometic 09+ GM LS9 4.100in Bore .051 thick MLS RHS Head Gasket
MPN C5985-051 · Store SKU cgsC5985-051
Supplier stock checked 11/8/2026, 10:02:34 AM UTC. Adding a part does not reserve it.
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Product details
Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.051". Right Side. Cometic MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required. MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel GM LS9/LSA Gen-4 Small Block V8 .051in. MLX Cylinder Head Gasket; 4.100in. Bore; RHS GM LS9/LSA Gen-4 Small Block V8 .051" MLX Cylinder Head Gasket, 4.100" Bore, RHS GM LS9/LSA Gen-4 Small Block V8 Cylinder Head Gasket
Manufacturer fitment & guides
Check C5985-051 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
