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The JE Pro Seal head gasket for GM LS1/LS6 is supplied with a 3.945 in bore and 0.039 in thickness as a specific replacement option. Part of JE’s Pro Seal family, the gasket is sized to match required bore and compressed thickness for appropriate LS1/LS6 head and block combinations during rebuilds or repairs. Use the part identification when selecting the correct gasket.
JE Pro Seal GM LS1/LS6 3.945in 0.039in Head Gasket
