S&S Cycle 106-3240 Super Stock 89cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black exhaust 2009 Harley Davidson FLHT Electra

2009 Harley Davidson FLHT Electra Glide Standard

1986-1990 Harley Davidson FLST Heritage Softail

2017-2019 Suzuki RMX450Z

Nucleon Race shoulder armor for superior impact

Equipped with U

S&S Cycle 106-3240 Super Stock 89cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black exhaust 2009 Harley Davidson FLHT ElectraCompression 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