KURYAKYN 432 POLISHED WILD THINGS BILLET HEADS TOURING

Wild Things Forged & Billet Heads for Twin Cam The most technologically advanced heads on the market. Mike Roland's designs carefully balance the production of awesome horsepower & torque with the important qualities of a good street motor - starts as easy as a stock bike, runs on pump gas without any detonation, runs cooler than stock, & is as tractable as a stock bike. For 95" Domed Piston or 103" Dish Dome Piston applications95" build requires use of Wild Things Pistons (P/Ns 444 or 443)103" builds require use of Dish Domed Pistons (P/N's 475 or 459)Combustion chamber machined with 15-degree squish Yields 10.5 to 1 compression ratio Features: Fits all '99-'10 Twin Cam Including '08-'10 Touring Set up to take up to .640" lift cam Utilizes equal length head bolts to minimize cylinder distortion & promote consistent head gasket squish. Requires purchase of four long OEM head bolts, sold separately. (H-D P/N 16478-85A)Extra cooling fin area, more than any other heads on the market Larger & improved breather passages, requires crankcase breather kit with 1/2"-13 breather bolts Larger & relocated oil drains get the oil down out of the heads All stock parts will mount to head'06-'10 with Wild Things Throttle Body require P/N 457 Flanges (If using stock Throttle Body, must use '05-earlier stock flanges) Efficient bathtub combustion chambers Proprietary valves designed on the flow bench to match Wild Things ports Heads come completely assembled with High- strength stainless steel valves & high-performance valve springs with titanium top retainers Intake Ports - 3/8" raised high flow & high velocity with 1.980" stainless intake valves Exhaust Ports - High velocity constant radius D" shaped high flow ports with 1.630" stainless exhaust valves Wild Things Billet Street Heads, Polished - For Wild Things Domed or Dish Dome Pistons (set)