Performance Diesel and Performance Gas machine shop
Custom oversize valves available for Cummins, Duramax, and Powerstroke
5293 Ward Road, Unit #3 Arvada, CO 80002 303-420-6218
Cummins Block Operations:
-Block re-boring for oversize pistons or modified clearances.
-Cylinder sleeve installation for repair of damaged cylinders.
-CNC Fire Ring Groove machining.
"O" ring groove machining.
-Head bolt hole enlargement and tapping for 14 MM head studs.