BBC MLS Head Gasket 4.640 Bore .053 (10pk)Cylinder Head Gasket - PermaTorque MLS - 4.640 in Bore - 0.053 in Compression Thickness - Multi-Layer Steel - Big Block Chevy - Set of 10
400 Chevy Head Gasket (10pk)Cylinder Head Gasket - 4.190 in Bore - 0.041 in Compression Thickness - Steel Core Laminate - Small Block Chevy - Set of 10