click here to download frankenstein submittal form

The above form is required for all products shipped to Frankenstein Engine Dynamics. Please fill out this form to the best of your ability. Frankenstein Engine Dynamics will not accept, nor work on any cylinder heads or manifolds without this form. This form may be printed and shipped or emailed to

We handle a large volume of products and want to ensure that your order get processed in a timely fashion. Failure to provide this form will result in a significant delay!

chris frank cnc racing

CNC Ported Cylinder Heads

Frankenstein Engine Dynamics utilizes a Centroid A560XL 5-Axis CNC Machining Center to reproduce the hand crafted cylinder head designs by Chris Frank. The CNC machine not only ensures accuracy of reproduction of our world renowned port designs, but also provides a superior surface finish while maintaining the tightest tolerances. By using this machine, Frankenstein Engine Dynamics can deliver a custom product to our customers in a quick and accurate manner! For more information about the process we go through to create each and every cylinder head design be sure to check out our Development page.

Frankenstein Engine Dynamics works with all makes and models of cylinder heads and can design a package to make sure you get the most out of your motor. We specialize in finding power where others simply can’t.

We don’t race flow benches here at Frankenstein..

The harsh reality is that flow bench numbers may sell heads, but they don’t necessarily make power. They are a good tool to aid in the design of a port but far from the end-all-be-all in determining the potential of your engine. 28in-Hg at room temperature simply cannot compare to the 1000+ degrees and massive pressures trying to get out of a running engine. And there is no simulation for dynamic compression. Because of these facts, we prefer to rely on dyno testing, and more importantly, real world testing at the racetrack to develop all of our cylinder head designs. The net result of our experience, engineering backgrounds, and real world testing is a superior cylinder head that will put you in the winner’s circle!

So next time you find yourself caught up in a sales pitch about flow bench numbers, remember, when’s the last time you saw one of these at your local track…

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