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Quality parts is only part of the equation. In order for them to function at peak performance, and be reliable they need to be machined correctly, have clearances checked and documented and meticulously cleaned before being assembled. We have accumulated the knowledge that can only come from years of experience and training. Our award winning staff will make sure you get as much horsepower to the ground as possible, we follow up well beyond the engine build from assistance at the track to advice on vehicle set up. Our aim is to make your racing program a success.

Knowlton's Thunderheads & Racing Engines Offers The Following Services and More

-Complete engine machining
-Complete engine builds and Dyno
-CNC head porting
-Hand porting
-Flow testing
-Transmission builds and freshening
-Holley EFI tuning
-Technical advice and vehicle tuning
-Carb rebuilds
-Parts selection for a given engine/car combination

Knowlton's Thunderheads and Racing Engines

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