Hermon, Maine
12th annual Strictly Shootout at the Wiscasset Speedway on September 28th

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.

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

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.

Congratulations to Spencer Morse on his win at Star Speedway in the PASS Mods


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!

1959 chevy 235 6 cylinder

What Our Customers Say