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Race Engine Building

Dyno Tuning

Track Consulting

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The twin-turbo big-block Chevrolet engine, built by HED, utilizes Energy/Visner billet cylinder heads and billet intake manifold to suck down the boost from a pair of 88mm Garrett turbochargers.

Justin Martin, LDR Nova

Watch Us in Action

Follow our YouTube channel to watch HED in action in the drag racing world. 

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SICK WEEK 2023

"To clock those 6-second pass, Gustafsson turned to Harrell Engine and Dyno for a 540 cubic inch big block Chevrolet, and a Performance close-ratio Turbo 400 transmission with a Greg Slack converter to pass the power."     -Sick The Magazine

HED Wins

Victories led by Pete's tuning and precision

 We specialize in advanced power management. All the power in the world is no good at all if you can't put it to the ground.

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