cylinder head rebuilding services. We are one of the country's largest motorcycle cylinder and head remanufactures. We specialize in CNC MACHINED valve seat profiles to enhance air flow and extend valve seat life. Other PRO1 RACING services include valve seat and valve guide replacement. We also offer cylinder head porting and flow bench testing. PRO1 RACING custom crafts, valves seats, and valve guides in house; however we also carry a full line of name brand cylinder head parts.

ON-DEMAND MACHINE SHOP SERVICES

PRO1 RACING is the first custom machine shop in the motorcycle industry to offer this service to the public. Send us your specifications and or a blueprint.  We will evaluate your design, estimate the cost of the project, and project the completion date.

Note: all valve jobs are CNC machined VALVE SEAT PROFILES for optimum PERFORMANCE!