The ProMaxx Performance Small Block Ford Cylinder Heads are manufactured from cast aluminum and have been designed to revolutionize the Ford performance world with high quality at a reasonable cost. These heads have made dyno proven increases of up to 75 horsepower over ported "E7" casting 5.0L heads!
All New Parts and Castings
US Made Manganese Bronze Valve Guides
Heads are Drilled for 1/2'' Head Bolts
Stainless Steel Valves
Screw-In 3/8" Rocker Studs and Guideplates
Sold In Pairs
Assembled in the USA