Ford Racing performance cylinder head gaskets minimize blowout and have a wire-ring combustion seat for extra sealing around combustion chambers. Ford Racing performance cylinder head gaskets are available with either steel-core laminate construction for cast iron heads, or graphite cores with a pre-flattened steel-wire ring, so they won't brinell aluminum heads.

• Bore Flange Valve Pockets Have Been Added
• 4.125 in. Overbore Competition Gasket
• 0.040 in. Compressed Thickness
• 4.160 in. Gasket Diameter
• 4.125 in. Bore Diameter
• 9.1cc Compressed Volume
• Made in the USA