S&S CYCLE 124" Power Package for Oil Cooled 107" M8 — 4.250" bore, 11:1 compression – 18-23 Softail, 17-23 Touring, 17-19 Trike

Made in the USA, this bolt-on big bore kit is engineered to improve power and reliability with forged pistons and precision-machined billet aluminum components.

The package includes Quikee pushrods, S&S precision tappets with hard-anodized tappet cuffs, and high-performance valve springs matched to S&S cam profiles designed for big bore use.

Oil management features independent scavenge sections for the flywheel cavity and cam chest, debris screens in both scavenge pickups, a magnet in the cam chest to help stop debris, and removable passage plugs for servicing.

Design improvements such as increased feed and scavenge flow capacity and an adjustable pressure relief valve (adjustable with the unit installed) help maintain oiling under high-load conditions.

S&S does not recommend compression ratios higher than 10:1 for Tri Glide® or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.