Edelbrock Performer Aluminum Cylinder Heads for 1987-1995 Small Block Chevy

Edelbrock Performer Aluminum Cylinder Heads are designed, cast and manufactured in the USA for unsurpassed quality. The top quality features incorporated into these heads include: highly effecient port design, state-of-the-art combustion chamber shapes, manganese-bronze valve guides, and threaded inserts in the exhaust bolt holes and rocker stud holes for strength and durability. They provide great torque and horsepower up to 5500 rpm and are 50 state emissions legal to fit emissions controlled engines, E.O. Number D-215-49!