Cylinder Heads From Johnson's Quality Machine

Johnson's Quality Machine offers new stock and performance heads for domestic and import applications. They are available as bare heads, or complete cylinder head assemblies. This includes stock replacement heads for the troublesome applications that crack or otherwise damage the OEM casting, like the Ford 3.0 or 4.0 heads. The replacements have addressed the deficiencies of the original, and are usually a much less expensive and permanent alternative to repairing or exchanging the original. As always, upgrades are available, from performance cams on overhead cam motors, to oversize valves, and of course, custom port work. These can be purchased by themselves, or as part of a custom engine build. We can perform the same work on a customer's clean casting. Performance heads from Ford Racing, GM Performance Parts, and Mopar Performance will be available in various stages as well, from gasket match to full port work, stainless valve upgrades, etc.