Cometic Gasket · New
Cometic Chevy Gen1 Small Block V8 .040in MLX Cylinder Head Gasket-4.220in Bores-Round Bore
MPN C5786-040 · Store SKU cgsC5786-040
Supplier stock checked 11/7/2026, 2:56:15 PM 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 0.040". With Steam Holes. 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. Chevrolet Gen-1 Small Block V8 .040in. MLX Cylinder Head Gasket; 4.220in. Bore; 18/23 Degree Heads; Round Bore; With Steam Holes Chevrolet Gen-1 Small Block V8 .040" MLX Cylinder Head Gasket, 4.220" Bore, 18/23 Degree Heads, Round Bore, With Steam Holes MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing Chevrolet Gen-1 Small Block V8 Cylinder Head Gasket
Manufacturer fitment & guides
Check C5786-040 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
