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This JE Pro Seal head gasket fits GM LSX applications with a 4.150 inch bore and 0.059 inch compressed thickness and is supplied as the left-side gasket. Intended as a like-for-like replacement where bore diameter and compressed thickness must match, it ensures correct side-specific fitment—verify left orientation when ordering to match your engine assembly requirements.
JE Pro Seal GM LSX 4.150in 0.059in Headgasket - Left
