SCE Gaskets Inc. legendary Pro Copper Head Gaskets, used and recommended by top professional teams to seal 7,000 horsepower Top Fuel motors. These fine gaskets are equally potent in 500 horsepower street strip motors. They are made from C11000 ASTM B-152-92 copper sheets, annealed to Rockwell F-32 after manufacturing, Skin sealed in engine sets. These exceptional gaskets are also available in ''Pro Heat Treat'' hardness for those engines requiring resistance to extreme combustion pressures.

Note: Must be used with O-rings