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KTRE offers a wide range of high quality racing products from heads, to complete motors and even drive train parts. Our head porting mastery make our race motors some of the most sought after on the market. With the experience of Lofgren behind us, we also offer solutions to put that power to the ground with race built transmissions and dive train parts. Our parts are race built and track ready. We offer the following, but not exclusively:

Knowlton's Thunderheads & Racing Engines Offers The Following Products and More

-Ported Heads
-Ported Intakes
-Exhaust Systems
-Ignition & Fuel Systems
-Complete Rear Ends
-Stearing Arms
-Drive Shafts
-Cables, Gears , Seals & Accessories

product edelbrock oldsmobile

Engine Packages

We have partnered with World products/Erson cams/PBM to now bring engine packageS at an affordable price. These packages are sold dynoed and ready to go. They are complete Dynoed from intake to pan. These packages are all machined and hand assembled in house just as the custom engine packages we have had such success with for over 20 years. Each engine comes with complete documentation just like all our custom engines. All clearances have been meticulously checked and documented and supplied with one of our KTRE spec sheets for each individual engine.
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Knowlton's Thunderheads & Racing Engines is Proud to Offer These Quality Racing Products

tti performance exhaust & headers
Holley EFI fuel injection
k&p engineering
calvert racing suspension
moser engineering
brisk spark plugs
coan racing
indy cylinder heads
driven racing oil
mopar performance parts
je pistons
vp racing fuels
schaeffer's lubricants
comp cams
pac racing springs

product edelbrock oldsmobile

Edelbrock Oldsmobile Heads

Fully cnc'd. Available with 2 different programs, stock valve or our big valve race version. Our race prepped heads use a 2.19 intake valve and are 244 cc runner. Comes completely assembled with roller cam springs speced out for your camshaft. The stock valve head comes completely assembled with stock edelbrock hardware upgrades available.
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Knowlton's Thunderheads and Racing Engines

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