These multi-layer steel head gaskets from Trick Flow and Cometic are the best way to seal aftermarket cylinder heads to an engine. With three layers of stainless steel, these gaskets offer better torque retention, less distortion, and better sealing than conventional or composite head gaskets in high horsepower, high cylinder-pressure applications.

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Trick Flow Head Gasket, Multi-Layer Steel, MLS, 3.910 in. Bore, .045 in. Compressed Thickness, GM 5.7L LS1, LS6, Each

Trick Flow Head Gasket, Multi-Layer Steel, MLS, 3.910 in. Bore, .045 in. Compressed Thickness, GM 5.7L LS1, LS6, Each

$222.58