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The Cometic MLS cylinder head gasket for Chevrolet Gen‑1 Small Block V8 (4.200" bore, 0.098" compressed thickness) is made for round‑bore, 18/23° heads and supplied with steam holes. Its multi-layer stainless construction pairs embossed, Viton/AMP-coated outer faces with an uncoated shim core to control thickness and rebound. Designed to seal mixed-metal head/block joints without sealants, it resists corrosion and evens clamp load to protect bore geometry.
Cometic Chevy Small Block 4.200 inch Bore .098 inch MLS-5 Head Gasket (w/All Steam Holes)
