HEAD GASKET CHEV SB 4.166 steel o'ring no steam ea

Fel-Pro head gasket for Chevrolet Small Block. Composition Type, 4.166 inch Bore & .041 inch compressed thickness. Fel-Pro performance head gaskets feature a PermaTorque/blue gasket body with a solid-steel core to minimize torque loss and gasket blowout, also have a wire-ring combustion seat with stainless steel armor for extra sealing force around combustion chambers. Made with a pre-flattened steel-wire ring, and have the strength of steel-wire sealing and the minimum brinelling of aluminum heads.