DeRisi Racing Engine Department
We offer complete engine packages for MX, XC, TT, Desert, Drag, or just wanting to outrun your buddies – we can meet your needs! We research, test, build and race our motors. They have proven performance and reliability time and time again.
We offer:
- Head Porting
- Race Cams
- Race Pistons
- Valve cutting standard or race cut
- Oversized Valves
- Rekluse Clutches and aftermarket baskets and clutch components
- Transmissions
- Complete race engine builds and rebuilds
We have parts and packages available for ATV, UTV, and Bikes! We offer full custom race engines as well as do-it-yourself parts and kits.
Honda TRX450R CNC Ported Head
- CNC Race Port
- Copper Valve Seats with Race Cut
- +1 Xceldyne Intake and Exhaust Valves
- Xceldyne Intake and Exhaust Valve Springs
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Yamaha YFZ450R CNC Ported Head
- CNC Race Port
- Copper Valve Seats with Race Cut
- +1 Xceldyne Intake and Exhaust Valves
- Xceldyne Intake and Exhaust Valve Springs
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4 Stroke Complete Engine Rebuild
Includes:
- Compete Disassembly/Assembly on engine
- Inspection of complete engine
- Top and bottom gasket kit
- New crank bearings
- New crank (If needed)
- New seals
- New transmission gears and components (If needed)
- New Spark Plug
- Cylinder inspected and replaced if needed
- Head disassembled, inspected, cleaned, and reassembled with new valve seals
- Valves and springs inspected and replaced if needed
- Valve seats inspected and cut if needed
- Waterpump replaced
- New Oil Filter
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Engine Super finish Process Available – Makes more power, less friction, and shifts smoother! – Call for Pricing
Custom color for engine components available! Please call for pricing and available colors!
FCR Carburetor services available
- Complete carb cleaning including disassembly of mid body
- Accelerator pump mods
- Jetting mods
- Aftermarket Needles
- Easy Adjustable Fuel Screw
- Throttle springs mods to make throttle easier
Call us today to get your powerplant ready! 704.538.3512