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Cometic's copper head gasket for GM LS series engines is a .050" thick sealing solution for 4.100" bore Gen‑3/4 small block V8s. The copper construction reduces required clamp load while embossed outer layers and a Viton coating help distribute clamping forces and improve sealing. No sealants or re-torque are required, and the gasket is intended to limit bore distortion when installed with compatible hardware.
Cometic GM LS1 SB 4.100in Bore 0.050in Copper Head Gasket
