S&S Cycle 4-3/8″ Stroke Flywheel For Harley Twin Cam

S&S 4-3/8" Stroke Flywheel For Harley Twin Cam

The flywheels are 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. Available with tapered connecting rods for stock style pistons or with full width connecting rods for S&S performance pistons. Three piece design with integral main shafts made from 4140 steel.

Features:

• 4-3/8" stroke
• Heavy duty 7.659" connecting rods
• 8-1/2" diameter flywheel
• Pinion and sprocket shafts are forged as part of the flywheel
• CNC machined from heat-treated, closed die, steel forgings, which are 114% stronger than late style stock steel flywheels
• Dynamically balanced
• Trued to less than .0005" runout on pinion and sprocket shaft bearing surfaces
• Capable of higher rpm
• Fully compatible with gear drive cams
• Made in the USA