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.
The S&S Cycle Power Pack is an all-in-one big-bore engine kit designed to deliver reliable high horsepower for your Harley-Davidson. It combines 4.32-inch cylinders with a matched cam, cam plate, oil pump, and all necessary support components, eliminating the need to source parts individually.
When maximum performance is the goal for your Harley-Davidson, the S&S Cycle Power Pack provides a robust and integrated solution. This kit simplifies the process of a major engine upgrade by bundling all critical components, from big-bore cylinders to cam chest internals, ensuring they work together in harmony. It's engineered for riders who want significant power gains without compromising engine reliability.
This Power Pack is tailored for Harley-Davidson riders aiming for a substantial power increase on their Touring, Softail, or Dyna models. By providing a complete kit, S&S Cycle takes the guesswork out of component matching, allowing you to focus on the build. While designed for performance, verifying your specific engine platform and year is crucial to ensure compatibility and a successful upgrade.
What's included in the S&S Power Package?
The Power Package contains 4.32-inch cylinders, a matched cam, cam plate, oil pump, and all supporting cam chest components required for installation.
Will this kit fit my specific Harley model?
This kit is engineered for Harley-Davidson engines. To ensure correct fitment, please confirm your year and engine type (e.g., Twin Cam, Milwaukee-Eight) using our Shop by Bike tool or by contacting S&S Cycle.
Does this Power Pack require a dyno tune after installation?
Any significant engine modification, especially a big-bore kit and cam swap, will require a proper dyno tune to optimize fuel delivery and ignition timing for maximum performance and engine longevity.
| BRAND | S&S Cycle |
| TYPE | Piston Sets - Powersports |
| SKU | T14-1020351 |
| 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