S&S CYCLE 132\" Power Package for M8 — 4.5\" stroke, 4.32\" bore, 11.0:1 compression, Wrinkle Black – 18-23 Softail, 17-19, 21-23 Touring, 22 CVO, 17-23 Trike
Big-bore bolt-in power package for M8 engines with bolt-on installation hardware included.
Enhanced oiling protection, serviceable passage plugs, adjustable pressure relief, and a high-performance valvetrain for durable, repeatable power.