Welcome to Hagedorn Racing Engines.

Terry Hagedorn – Owner
Thompson, MO

Home of Hagedorn Motorsports – Terry and his wife Sheila can be found on the national 4WD pulling circuits every year.

We build the "baddest" performance engines around for many racing, street, and marine applications!

From all out race engines for drag racing, truck or tractor pulling, dirt track racing, performance boat engines to ground pounding pump gas motors for your street car, we have you covered.

Your Next High Performance Engineracing engine builder performance truck pulling

At Hagedorn Racing Engines you will get one on one personal attention on every engine we build. We take great pride in our attention to detail. 

Each engine is specifically built for the customer's particular needs by matching the engine to your driving requirements to specifications like fuel requirements, driving style, weight of the vehicle, transmission type, gearing, and RPM requirements.

One thing we don't do at Hagedorn Racing Engines is build low cost cookie cutter generic engines just to try and compete with low cost Internet engine builders.  If that is what you are looking for - you are at the wrong shop. 

If you are looking to win a championship or have a dependable street engine for your muscle car that will last for years to come, we can make it happen!


We take great pride in every engine we build…
with attention to detail and personal one on one service.




Our New Fabrication Shop

Our new fab shop up and running ,taking appointments, filling up fast,call and book your car or truck

We have had the opportunity to work with Terry Hagedorn and Hagedorn Racing Engines for the past 4 years. During this time Terry has went above and beyond to ensure that we are always running great and ready to go. He is a phone call away if needed and has ventured to watch us hook. He is very committed and makes sure that we work with him on a personal basis so that we know exactly what is going on with our engine. Terry's camshaft and header technology is above and beyond anyone else.

The Halley's and Shazam Pulling Team