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This Cometic MLS head gasket for Chevrolet Gen‑1 small block V8 has a 4.060" bore and a .027" compressed operating thickness (18 or 23 degree heads, round bore). Multiple embossed stainless steel layers with Viton‑coated outer faces deliver high‑temperature sealing without sealants, resist shearing between dissimilar materials, and provide rebound and corrosion resistance while helping to distribute clamp load evenly across the sealing area.
Cometic Chevy Small Block 4.060 inch Bore .027 inch MLS Head Gasket (18 or 23 Deg. Heads)
