Cylinder Head Services

Cylinder head development

The cylinder head is the key to getting the most power out of any internal combustion engine. KWS is at the forefront of cylinder head development. Using tools like our Superflow 110 Flow Bench with Flowcom, Newen-BB Contour CNC valve seat cutter, Millport 5-Axis CNC machine, and our Dynojet 250i, we are able develop and reliably build race winning heads every time. We keep CNC heads on the shelf for most popular models available for immediate exchange. We also offer several custom features like over-sized valves, bronze seats, and over-sized buckets. We also offer complete custom heads for unique applications.

KWS CNC Pro Heads are completely ported and have CNC valve jobs. These heads are bare and ready for assembly.

Please note: All cores cases, heads, cylinders, crankshafts, clutch baskets, and camshafts must be in good condition, not broken, rusted, or otherwise damaged.


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KWS CNC Pro Head (4 cylinder)

KWS CNC Pro Head

  • Aprilia RSV4 2010+
  • BMW S1000RR 2010+
  • Honda CBR1000RR 2004 - 2007
  • Honda CBR1000RR 2008 - 2009
  • Kawasaki ZRX12 2001- 2008
  • Kawasaki ZX10R 2006 - 2007
  • Kawasaki ZX10R 2008 - 2009
  • Kawasaki ZX-12R 2000 - 2006
  • Kawasaki ZX14R 2006 - 2007
  • Kawasaki ZX14R 2008+
  • Suzuki GSX1300R Hayabusa 1999 - 2007
  • Suzuki GSX1300R Hayabusa 2008+
  • Suzuki GSX-R1000 2001 - 2004
  • Suzuki GSX-R1000 2005 - 2006
  • Suzuki GSX-R1000 2007 - 2008
  • Suzuki GSX-R1000 2009+
  • Suzuki GSX-R600 2006 - 2007
  • Suzuki GSX-R600 2008 - 2009
  • Suzuki GSX-R750 2006 - 2007
  • Suzuki GSX-R750 2008 - 2010
  • Yamaha YZF-R1 4V 2007 - 2008
  • Yamaha YZF-R1 5V 2004 - 2006 ($1550)
  • Yamaha YZF-R6 2006 - 2007
KWS CNC Pro Head (Twin)
  • KWS CNC Pro HeadHonda RC51-SP2 2003
KWS CNC Pro Head (Single)
  • KWS CNC Pro HeadHonda CRF250 2010+
  • Honda CRF450 2002 - 2003
  • Honda CRF450 2004 - 2006
  • Honda CRF450 2007 - 2008
  • Honda CRF450 2009 - 2011
  • Kawasaki KX450F 2006 - 2008
  • Suzuki RM-Z450 2006 - 2008
  • Yamaha YZ450F 2003 - 2008
Newen CNC Valve Job

Newen CNC Valve Job

  • Newen CNC valve job (4 cylinder, 4 valve)
  • Newen CNC valve job (4 cylinder, 5 valve)
  • Newen CNC valve job (twin)
  • Newen CNC valve job (single)
Options

KWS CNC Pro Heads

  • Over-sized valves
  • Bronze seats w/TI valves
  • Over-sized buckets (Hayabusa)
  • KWS Hayabusa Pro Grudge Head w/all the tricks