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Cometic’s MLS‑5 head gasket for Chevrolet Gen‑1 small block V8 with a 4.165" bore and .066" compressed thickness (with steam holes) uses multiple embossed stainless steel layers and Viton‑coated outer faces. The MLS design provides strong sealing for aluminum and cast iron mating surfaces, resists shear between dissimilar materials, and distributes clamp load to reduce bore distortion, making it suitable for high‑output engine sealing needs.
Cometic Chevy Small Block 4.165 inch Bore .066 inch MLS-5 Head Gasket (w/All Steam Holes)
