Everything you expect from S&S
Have installed this kit on multiple bikes. S&S knows what they’re doing.
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
S&S Cycle Power Packs are complete piston and ring assemblies designed to increase displacement and compression in Harley-Davidson engines. These direct-fit replacements swap in place of stock pistons to deliver more power without major engine modifications, making them a straightforward upgrade.
Upgrade your Harley-Davidson engine with the S&S Cycle Power Pack piston and ring assembly, engineered for a direct swap to boost performance. This assembly is designed to drop in, replacing your stock pistons to unlock increased displacement and a higher compression ratio. The result is a noticeable gain in power and responsiveness without the need for extensive custom work.
The beauty of this S&S Cycle Power Pack lies in its simplicity and effectiveness. By upgrading your pistons, you're directly impacting the engine's ability to create power. This makes it an excellent choice for riders looking for a measurable performance increase without venturing into a full engine build. Always consult the S&S installation guide for your specific engine, as cylinder prep may be required depending on current bore condition.
What's included in the Power Pack?
This S&S Cycle Power Pack includes a complete piston and ring assembly, ready to install into compatible Harley-Davidson engines.
Do I need to hone my cylinders before installing?
You should always check the S&S installation guide for your specific engine. Cylinder prep, such as honing, may be required depending on the current condition of your cylinder bores.
Will this increase my horsepower?
Yes, the increased displacement and higher compression ratio delivered by this Power Pack are designed to provide measurable power gains over your stock setup.
| BRAND | S&S Cycle |
| TYPE | Piston Sets - Powersports |
| SKU | T14-1020383 |
| WEIGHT | 44.19 lb |
Have installed this kit on multiple bikes. S&S knows what they’re doing.
100 kit is sick! 10/5/1 compression is perfect for the 585 cams. Not going to burn the tires unless you bounce it, but at 2.7 K it pulls like a freight train. Super fun! Thanks S&S!
5 Stars
I didn't get it yet,can't wait too get it in my bike, than ill leave a review