It Is
Rocket
Science
Custom Race Engines. Cylinder Head R&D.
Built by a Machinist. Not an Assembler.
Every Engine. Every Component. Every Race.
Combination Mapping
Cam, heads, and short-block matched to your car, class, and tuning goals.
View ServiceA Machinist Who Builds Engines.
Not an Assembler Who Machines Parts.
Craig Gerfen started at Alan Johnson Performance in 1998 working on top fuel and billet cylinder heads. He spent years mastering every aspect of engine assembly — balancing, decking, honing, block work, rod work — before founding Race Engine Systems in 2007. That foundation means complete quality control on every build, from raw components to the dyno sheet.
About Craig GerfenA Race Engine Is a System, Not a Parts List
RES maps the full combination — cam, heads, and short-block matched to your car and class — and can advise on fuel, ignition, and tuning so it runs right where it counts: in the car, not just on the dyno.
Combination MappingBuilt to Compete. Proven to Win.
Dealer-Direct.
Expert-Advised.
Race Engine Systems carries premium components from Dart Machinery, Callies Performance, Diamond Racing Products, Manley Performance, Total Seal, Edelbrock, Jesel, and more. When you buy parts through RES, you speak directly with Craig — 25 years of experience, not a parts catalog.
View Parts & Components- Dart Machinery
- Callies Performance
- Diamond Racing Products
- Manley Performance
- Total Seal
- Edelbrock
- Jesel
- T&D Machine Products
- Manton Pushrods
- PAC Racing Springs
- Brodix
- Williams Manufacturing
Ready to Get Started?
Every project starts with a conversation.