Thayer's Automotive

Unleashing Unrivaled Performance

Welcome to Thayer’s Automotive where producing competitive engines is our specialty! Our machine shop is located in Hermon, Maine where we combine cutting-edge technology and precision engineering to create unbeatable racing parts and engines. We are dedicated to pushing the boundaries of speed and performance, ensuring that every component we produce delivers unrivaled power and reliability. From mild to wild we can build it! We also have used rebuilt engines, engine kits and parts, used engine parts, and preowned vehicles for sale. All work is done in-house by the owner with 35 years of experience. If you’re looking for speed, call Thayer’s Automotive.

New to our shop, a state-of-the-art precision automotive cylinder honing machine! We're proud to be one of the only shops in the area equipped with this advanced technology!

Services You Can Count On

Machine Shop
Competition Engines
Classic Automobile Engines
Industrial & Marine Engines

Computer Engine Design
Stock Engine Rebuilds
Dyno Tuning
Intake Manifolds

Cylinder Heads
Engine Blocks
Carburetor Repairs
Race Engine Repairs

Rebuilt Engine Sales
Engine Part Sales
Preowned Vehicle Sales
And More

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Thayer Power Wins Again

Congrats to our newest winner! Join the “Thayer Power Wins Again” team when racing with our competitive engines. Whether you’re a beginner or just starting out in the racing world our engines will give you the competitive edge to win the race! Performance race engines, circle track, street performance, even truck pulling, we do them all.

Congrats to D.C. Alexander on his first late model win at Speedway 95

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Recent Engine Build

Are you looking to dominate the competition and take your racing to the next level? We understand that winning races requires more than just skill and energy. It requires an engine that can deliver the power and performance you need to leave your competitors in the dust. For maximum power, torque and reliability call us to discuss a Thayer’s Automotive competition engine!