4225 Fallston Road, Shelby, NC 28150

(704) 538-3512 info@derisiracing.com

Engine Department

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

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