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

Call for Pricing

 

 

 

 

 

 

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

Call for Pricing

 

 

 

 

 

 

 

 

 

 

 

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

Call for Pricing

 

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