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This Cometic MLS left-side head gasket is specified for GM LSX Gen‑IV/V small block V8 installations, .040" thickness with a 4.155" bore. The multi-layer steel construction uses embossed AMP-coated outer layers with an uncoated stainless shim center layer for controlled thickness. The embossed outer layers conform to varied sealing environments and surface finishes, require less clamp load to reduce bore distortion, and distribute clamp load across the sealing area for improved sealing performance.
Cometic GM LSX Gen-IV/V Small Block V8 .040in MLS 4.155in Bore Left Side Head Gasket
