When Extrude Hone AFM begins doing cylinder heads on a regular basis, the service will be available for a variety of castings. This process is not limited to cylinder heads and intake manifolds.

Extrude Hone tunes up a set of Cobra 4-valve cylinder heads and a Bullitt intake manifold with its state-of-the-art porting process. HOT ROD Staff Writer Sep 18, 2002 See All 20 Photos ...

Extrude honing is a process that uses putty to increase a machine's functionality. We take look at how it helps the automotive industry.

Torque plates simulate the stress and distortion to the block that bolting on the cylinder heads creates. ... we sent it to Extrude Hone to have it ported by their patented abrasive-flow method.

Extrude’s work on PDI’s Big Boss Exhaust manifolds not only produces maximum exhaust flow, it also removes imperfections that can lead to increased heat retention. PDI reports a 20 percent ...