Domhoff Racing Engines a.k.a. Domhoff Automotive Machine
is a family owned performance based machine shop located
in Harmony, PA. Domhoff Racing Engines #1 concern is the
customer's best interests when it comes to building a
reliable, winning engine.
Doug Domhoff is the founder of Domhoff Racing Engines.
He laid the ground work for the winning race engines while
drag racing on the local level in 1966, and then retiring
from the national level in 1997. He supported his own
race team by building engines for other teams. He decided
in 1984 to turn his engine building into a full time business.
After taking early retirement as a truck driver, Doug's
father, Oscar, joined the business as a crankshaft grinding
specialist. Doug's son, Shawn, has been building engines
with his father since he was about 13 years old. Today,
Doug concentrates on research and development and the
dyno side of the business while Shawn continues the engine
building. Jared, Doug's oldest grandson, has started to
show interest in the engine building and will begin his
training this year by assisting his Uncle Shawn with the
engine and body maintenance on Shawn's race team.
In 1998 we expanded the existing facility from 2000
sq ft to over 3000 sq ft for the new DTS Dyno testing
room. The dyno was probably the best equipment investment
made since it can be used for R&D as well as helping
our customers save hours in fine tuning the engine to
Many of our customers accomplishments include the
Multiple Track Championships (Dirt)
Multiple Class Winners (various types of racing)
Multiple IHRA & NHRA National Record Holders
2002 World Bracket Finals Champion