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The Cometic MLS cylinder head gasket for Chevrolet Gen‑1 Small Block V8 (4.200" bore, 0.086" compressed thickness) fits round‑bore, 18/23° heads and includes steam holes. Its embossed outer stainless layers are coated with Viton/AMP while an uncoated stainless shim sets the working thickness. The multi-layer design rebounds against shearing, resists corrosion, seals mixed-metal head/block joints without sealants and spreads clamp load to help preserve bore integrity.
Cometic Chevy Small Block 4.200 inch Bore .086 inch MLS-5 Head Gasket (w/All Steam Holes)
