Welcome to the Home of the Horsepower Specialists - Knowlton's Thunderheads & Racing Engines.
We offer head porting, engines, builds and machining, transmissions, tuning, carb rebuilds and more.
KTRE engine packages offer you the chance to go beyond a crate motor and get proven, tested parts combinations to create the motor of your dreams.
KTRE are the Gen III Hemi kings. Get the the most out of your Gen III Hemi or get a complete motor build from KTRE.
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