S&S CYCLE 4" Big Bore Bolt-In Sidewinder? Cylinder Kit - 100" - Silver 910-0642 Tires 2x Ring packs which includes

2x Ring packs which includes the top

Big Bore Cylinder Set - 4

3500-6000 rpm for 88" to 103" engines and 2500-5500 rpm for larger engines

Has 2-1/16" throat at the butterfly and a 1-3/4" venturi

Flywheel - Twin Cam

S&S CYCLE 4" Big Bore Bolt-In Sidewinder? Cylinder Kit - 100" - Silver 910-0642 Tires 2x Ring packs which includes4" Big Bore Bolt In Sidewinder? Cylinder Kit 100" Silver Bolt in no machining, balancing or splitting the crankcases; install can be performed with engine still in frame, Cast Ductile Iron Sleeve in cast aluminum for superior heat transfer, 88" engines are boosted to 100", 96" and 103" engines are boosted 110", 10. 5: 1 compression (w stock 85cc heads) makes for a very streetable and dependable engine that also responds well to performance cams,