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This JE Pro Seal head gasket is specified for GM LSX applications with a 4.055 inch bore and 0.059 inch compressed thickness, supplied as the left-side head gasket. It serves as a side-specific replacement where exact bore and thickness are required, allowing correct sealing on matched engine assemblies. Confirm left orientation when ordering to ensure proper installation.
JE Pro Seal GM LSX 4.055in 0.059in Headgasket - Left
