Cometic Chevy Small Block 4.200 inch Bore .086 inch MLS-5 Head Gasket (w/All Steam Holes)

The Cometic C5249-086 is an engine head gasket designed for Chevrolet Gen-1 Small Block V8 engines. It features a multi-layer steel (MLS) construction with a Viton rubber coating on the outer layers and a compressed operating thickness of 0.086 inches. This gasket includes steam holes to help manage heat and provides maximum sealing performance for high-output engines.

MLS gaskets are ideal for applications connecting aluminum heads to aluminum blocks or aluminum heads to cast iron blocks, as they can withstand the shearing forces between dissimilar materials. The multiple stainless steel layers offer increased strength, rebound ability, and corrosion resistance.