NOW AVAILABLE . . . FULLY CNC MACHINED GS CYLINDER HEADS!!!

AFTER PURCHASING OUR 5-AXIS MACHINING CENTER IN 2003, WE PRIMARILY FOCUSED OUR ATTENTION ON THE NEWER SPORT BIKE MARKET, AND OUR VORTEX II PRO CYLINDER HEADS.  OVER THE YEARS WE CONTINUALLY RECEIVED CALLS ON THE OLDER GS STYLE HEADS.  WE HAVE FINALLY DECIDED TO CREATE A PROGRAM FOR A FULLY CNC MACHINED GS STYLE CYLINDER HEAD.  

WE CHOSE THE 31/27 COMBINATION AS BEING THE MOST POPULAR AND REQUESTED SIZE.  THIS HEAD SHOULD COVER DISPLACEMENTS IN THE 1327cc TO 1500cc RANGE.  WE CREATED A PORT THAT IS MAXIMIZED FOR FLOW WITHOUT HAVING THIN SPOTS IN THE CASTING, REQUIRING EPOXY OR WELDING.  THE HEAD IS COMPLETELY CNC MACHINED (INCLUDING COMBUSTION CHAMBERS) AND DOES NOT REQUIRE ANY HAND FINISHING (ELIMINATING ANY INCONSISTENCIES).  THE INTAKE PORTS ARE SHORTENED (FOR HIGH RPM POWER) AND MACHINED FOR 44mm LECTRON CARBS.  THE HEAD INCLUDES BILLET EXHAUST SPIGOTS, CNC MATCHED FOR A 1.750” HEADER.

Features:

• CNC Ported GS1100/1150 Cylinder Head
• 31mm intake valves & 27mm exhaust valves
• Competition multi-angle valve job
• Cad designed combustion chamber, CNC machined
• Intake spigots welded & machined for 44mm carbs
• Bronze valve guides for high lift camshafts
• Oversize Ampco 45 intake & exhaust seats
• Billet CNC exhaust spigots
• Pro valve spring kit
• Titanium retainers
• New valve seals
• Surface cylinder head (1mm)
• Clean head, set valve spring pressure & assemble
• Includes stainless steel valves (titanium valves optional)

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