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Cometic's copper head gasket for GM LSX Gen‑4 small block V8s is a .043" thick unit with a 4.100" bore intended for the left-hand (LHS) cylinder head. The copper construction reduces clamp load needs while embossed outer layers and Viton coating help distribute clamping forces for reliable sealing without sealants or re-torque. It is engineered to limit bore distortion when installed with compatible hardware.
Cometic GM LSX 4.100in Bore 0.043in LHS Copper Head Gasket
