S&S CYCLE SKU: T14-1020351

S&S Cycle 4.32-inch Big Bore Power Pack - Harley Touring, Softail & Dyna

$10.838.000,00
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About S&S Cycle

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.

Why riders pick this

  • 4.32-inch big bore cylinders for power
  • Matched high-performance cam and cam plate
  • Integrated oil pump system included
  • Complete cam chest package
  • Engineered for reliable high horsepower

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.

Integrated Performance Components

  • Includes 4.32-inch bore cylinders for increased displacement
  • Features a matched high-performance cam and cam plate
  • Integral oil pump system for optimized lubrication
  • Complete cam chest package for a seamless upgrade

Simplifying Your Engine Build

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.

Specifications

  • Brand: S&S Cycle
  • Manufacturer Part #: 310-1106D
  • Category: Engine Components / Piston Sets - Powersports
  • Weight: 44.19 lb

Common questions

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.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDS&S Cycle
TYPEPiston Sets - Powersports
SKUT14-1020351
WEIGHT44.19 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
4 RATINGS
5★ 4
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Aug 28, 2023

Everything you expect from S&S

Have installed this kit on multiple bikes. S&S knows what they’re doing.

— BRETT M
✓ VERIFIED
Apr 13, 2022

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!

— Anonymous
✓ VERIFIED
Mar 8, 2020

5 Stars

— Anonymous
✓ VERIFIED
Jun 6, 2021

I didn't get it yet,can't wait too get it in my bike, than ill leave a review

— Anonymous