✓ VERIFIED
Aug 28, 2023
Everything you expect from S&S
Have installed this kit on multiple bikes. S&S knows what they’re doing.
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S&S CYCLE
SKU: T14-1020356
S&S Cycle Power Package Big Bore Cylinder Kit - Harley Touring, Softail & Dyna
$3,294.95
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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 Package is a comprehensive big-bore engine assembly designed to uncork serious horsepower and torque from your Harley-Davidson. This kit combines 4.32-inch cylinders with a perfectly matched cam, cam plate, oil pump, and all necessary supporting components.
Why riders pick this
- Complete big-bore engine assembly
- 4.32-inch cylinders for increased displacement
- Matched cam, cam plate, and oil pump for synergy
- Delivers reliable high-horsepower output
- Includes all necessary cam chest components
When you're chasing reliable high-horsepower, a well-engineered big-bore kit is the foundation. The S&S Cycle Power Package takes the guesswork out of building a high-performance V-twin by bundling critical components that are designed to work together seamlessly. This isn't just a set of cylinders; it's a complete cam chest assembly with everything you need to transform your Harley's power delivery.
Unleash Serious Power
- Large 4.32-inch big-bore cylinders increase displacement
- Matched cam and cam plate for optimized valve timing
- Integrated oil pump ensures consistent lubrication under load
- Complete cam chest assembly for a simplified upgrade
Engineered for Performance
This Power Package is built for the rider who demands more from their Harley. Whether you're upgrading an Electra Glide, Softail Heritage Classic, or other compatible Harley-Davidson, this kit provides a robust foundation for significant performance gains. Professional installation and a dyno tune are recommended to get the most out of this powerful upgrade.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 310-1103D
- Category: Engine Components / Piston Sets - Powersports
- Weight: 44.19 lb
Common questions
What Harley-Davidson models does this Power Package fit?
This Power Package is designed for various Harley-Davidson models including Touring, Softail, and Dyna platforms. Always confirm exact year and engine family compatibility with S&S Cycle or your dealer before ordering.
What components are included in this Power Package?
The kit includes 4.32-inch big-bore cylinders, a matched cam, cam plate, oil pump, and all necessary cam chest components for a complete and reliable installation.
Will I need a dyno tune after installing this big-bore kit?
Yes, any significant engine modification like a big-bore kit will require a professional dyno tune to optimize fuel mapping and ignition timing for peak 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.
| BRAND | S&S Cycle |
| TYPE | Piston Sets - Powersports |
| SKU | T14-1020356 |
| WEIGHT | 44.19 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
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✓ 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!
✓ VERIFIED
Mar 8, 2020
5 Stars
✓ VERIFIED
Jun 6, 2021
I didn't get it yet,can't wait too get it in my bike, than ill leave a review