Diesel Performance
Spent alot of money on all those engine, transmission, fuel and air upgrades?   Guess what.  So has everyone else.  Make your truck stand alone in the performance world you live in.  If you demand the best-call us.

Mountain High Performance
diesel cylinder heads and complete engines.  Flow bench work performed,  porting, oversize valves available, along with Cryogenically treated springs, guides, push rods, retainers, etc.  We also have great prices on OEM and forged pistons in any compression ratio and oversize.  
Gas and E85 Performance
Alcohol enhanced fuel for induction modified street and strip engines is a  reality.  Nitrous injection is common for immediate power boosts even on street vehicles. We offer Cryogenic Processing to enhance engine components to be able to better withstand the power and temperatures found in maximum performance engines.  We also offer valve train and engine upgrades for most Domestic and Import engines.  Porting and polishing with flow bench work performed.  All types of block and cylinder head machining available.  Oversize valves are also available for many popular engines. 
American Muscle
Sport/Compact
4X4 and Off Road
Complete In House Machine Shop Services
Capable of all Automotive processes along with CNC operations for all your custom or innovative requirements performed by ASE master machinists.
Cryogenic Processing
We own our own Cryogenic Processing facility, and perform Cryogenic Processing in house.  Check the link to the right for more info.
diesel performance, big valve performance heads, oversize valve diesel heads, oversize valve performance diesel heads, modified diesel cylinder heads, big valves, duramax racing, 6.0 or 6.4 powerstroke racing heads, cummins racing heads, cummins 5.9 and 6.7 oversize valves, cummins intake manifold removal,
       5293 Ward Road, Unit #3      Arvada, CO   80002     303-420-6218
Vintage, Collectible, Classic
With over 49 years of continuous service and 38 continuous years of ownership, our experience is substantial and our capabilities are only exceeded by our commitment to quality.
Cummins performance, Cummins Big Valve, Big Valves
Index Page
Check with us on our great engine kit prices.  We can Cryo treat any of them, and customize with cam selection,  rods, and any upgraded internal parts desired.