S&S CYCLE - CYLINDER HEADS - 79 CC - SUPER STOCK(R) - TWIN CAM drag_part_10102046 Best response from 3500 to

Best response from 3500 to 6000 rpm

2000 Harley Davidson FXST Softail

Seamlessly replaces stock rotor

Derby Cover - Polished - Classic - 3 Hole

2015 Kawasaki Ninja H2-R

S&S CYCLE - CYLINDER HEADS - 79 CC - SUPER STOCK(R) - TWIN CAM drag_part_10102046 Best response from 3500 toCylinder Heads 79 cc Super Stock(R) Twin Cam Highlights Heads are fully assembled with springs and valves Works great with 88" to 103" stock motors, but are ideal for larger stroker or big bore engines up to 110" Large 1. 940" intake and 1. 575" exhaust valve maintain port velocity for good low and midrange response, but supply enough air for stock and slightly larger engines to perform to their full potential S&S(R) High performance valve springs