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 core heads, cylinders, crankshafts, clutch baskets, and cams must be in good condition—not broken or rusted.

KWS CNC Pro Head (4 cylinder)

$1350 w/ exchange

• 1999 - 2007 Suzuki GSX1300R Hayabusa
• 2008 Suzuki GSX1300R Hayabusa
• 2001 - 2004 Suzuki GSX-R1000
• 2005 - 2006 Suzuki GSX-R1000
• 2007 - 2008 Suzuki GSX-R1000
• 2006 - 2007 Suzuki GSX-R750
• 2006 - 2007 Yamaha YZF-R6
• 2006 - 2007 Kawasaki ZX-14

KWS CNC Pro Head (Single)

$480 w/ exchange

• 2001 - 2008 Honda CRF450R
• 2006 - 2008 Suzuki RM-Z450
• 2006 - 2008 Kawasaki KX450F
• 2003 - 2008 Yamaha YZ450F

Newen CNC Valve Job

• Newen CNC valve job (4 cylinder) - $340
• Newen CNC valve job (single) - $180

Options

• Over-sized valves - $600
• Bronze seats w/TI valves - $1200
• Over-sized buckets (Hayabusa) - $2200
• KWS Hayabusa Pro Grudge Head w/all the tricks - $5500