S&S Cycle 106-4277 Super Stock 79cc Cylinder Head Kit - .640in. Lift Springs - Silver Powder-Coat engine-crankcase-components 79cc heads accept OEM rocker

79cc heads accept OEM rocker boxes

1999-2004 Yamaha YFM250 Bear Tracker

manufacturing

00 mm Ring

2 Year warranty

S&S Cycle 106-4277 Super Stock 79cc Cylinder Head Kit - .640in. Lift Springs - Silver Powder-Coat engine-crankcase-components 79cc heads accept OEM rockerCompression release machining Must use S&S rocker boxes (PART #90 4110) if S&S compression releases are used. High port flow gives great performance now, and more later when additional upgrades are done. Heads are fully assembled with springs and valves, and are available in silver or black powder coat finish to match OEM components. Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement. Heads are machined