S&S 4-3/8" Stroke Flywheel with Tapered Rods & Balancer Gear

S&S flywheel is the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of. This new crank for the Milwaukee Eight platform is the best of the best to build your high performance engine around.

• 4-3/8" stroke for 107 or 124ci builds
• Balance gear installed
• Heat treated 4140 material is harder and more than twice as strong as stock
• Stronger assembly eliminates need to weld crankpin
• Capable of higher RPM
• S&S high strength connecting rods are designed with finite element analysis to eliminate weak spots and handle more power
• Tapered wristpin connecting rods compatible with stock pistons
• Balanced for stock piston weight (1060g)
• Perfect for gear drive cams
• Consistent balance and precision machining
• Made in the USA