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The JE Pro Seal head gasket for Chevrolet Small Block 400 is offered with a 4.165 in bore and 0.039 in thickness to match specific block and head combinations. This Pro Seal gasket is intended as a correct-dimension replacement during engine rebuilds or head servicing where precise bore and compressed thickness are required. Reference C5248-040 when ordering or replacing the gasket.
JE Pro Seal Chevrolet Small Block 400 4.165in 0.039in Headgasket (ref C5248-040)
