Cylinder Head Customization for Motorcycle Performance Optimization

Competition CNC Hayabusa Products

1508cc Busa Gen1 84mm Bore (+3mm)
68mm stroke (+5mm)

234-256 HP Depending on compression ratio, cams, and fuel
Fully blue-printed engines
All machine work done in house

Our engine packages with our CNC ported head and cam packages produce between .155 and .170 hp per cc depending on compression ratio and camshafts.

  • Bore and re-plate cylinder to 84mm
  • Diamond hone block
  • Resurface block deck
  • CP Pistons, 84mm
  • Carrillo H Beam rods
  • Main bearings
  • Rod bearings
  • Stroker crankshaft +5mm
  • Oil system modifications
  • High volume oil pump gear
  • Adjustable cam gears
  • Engine gasket set
  • Head gasket
  • Base Gasket
  • Spacer Plate
  • Case saver
  • Blueprint and assemble engine


  • With stage 1 CNC ported head (street cams) $6995
  • With stage 2 CNC ported head (street/strip cams, lowered guides) $7125
  • With stage 2 CNC ported head (O/S valves, bronze seats, street/strip cams) $8125
  • With stage 3 CNC ported head (O/S valves, bronze seats, bronze guides, CNC Clearance for cams, race cams, race fuel) $8625


  • Manual cam chain tensioner $52/$90
  • Bored throttle bodies $650
  • Race cut transmission $550
  • Dummy balance shaft $30
  • Cut factory or Billet oil pan
  • Aftermarket clutches lock-up or slider
Easy Engine Shipping by Freight Wire
Click here for easy engine shipping.

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APE Race Parts at Competition CNC CP Carillo at Competition CNC Marren Fuel Injection at Competition CNC Web Cam Inc. - Performance and Racing Camshafts at Competition CNC World Wide Bearings at Competition CNC
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