KB Performance, 96" to 103" big bore piston set. Std - 07-17 Twin Cam (NU) 940497 535" exhaust valve lift

535" exhaust valve lift

Carpeted seat bottom protects the fender

Chrome plated housing and black switches

SWINGARM (NU)

Chrome multiple-parts silicone spring set

KB Performance, 96" to 103" big bore piston set. Std - 07-17 Twin Cam (NU) 940497 535" exhaust valve liftFor 96" to 103" (3 3 4" to 3 7 8") big bore conversions. Used with stock heads and cylinders. By boring the stock cylinders from 3 3 4" to 3 7 8" big bore size engine capacity will increase from 96" to 103". Comes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. 10. 0: 1 CR with 85cc head. Head type: Flat top. +1. 9cc Compression height