Maxx Quality, Performance and Affordibility!

The ProMaxx MAXX Series Ford FE 390-428ci Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. Even the ''as cast'' runner heads utilize ultra-smooth new runner and chamber designs that produce exceptional flow numbers. The fully CNC'd version is designed by Keith Craft Racing Engines and flow numbers that will make the Ford FE performance crowd, very happy! This combined with a multi-angle competition valve job, diamond-honed bronze guides, hand bowl blending, and professional assembly to outperform the best brands in the business.