✓ 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: T14-1020396
S&S Cycle Power Pack Piston Set - Harley Touring, Softail & Dyna
$3,497.95
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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.
S&S Cycle Power Pack Piston Sets are high-performance components engineered to increase displacement and horsepower in Harley-Davidson engines. These pistons are built to S&S specifications, ensuring durability and reliable power gains for your V-twin.
Why riders pick this
- S&S Cycle engineered performance pistons
- Increases engine displacement
- Contributes to horsepower gains
- OEM-quality replacement for durability
When you're building a performance Harley-Davidson engine, the foundation matters. S&S Cycle Power Pack Piston Sets provide that foundation, offering a direct OEM-quality replacement with the added benefit of increased displacement. Designed for riders pushing their Touring, Softail, or Dyna to the next level, these pistons are a critical component in unlocking your engine's true potential.
Engineered for Maximum Displacement
- Manufactured by S&S Cycle for proven quality
- Designed to increase engine displacement
- Contributes to significant horsepower gains
- Built for durability in high-performance applications
The Core of a Performance Build
A proper piston set is essential for any serious engine upgrade. These S&S Cycle Power Pack Pistons are designed to integrate seamlessly with other performance components like big-bore cylinders and high-lift cams. Always ensure proper fitment for your specific Harley engine and consult a qualified technician for installation to maximize performance and longevity.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 310-1398A
- Category: Engine Components / Piston Sets - Powersports
- Weight: 44.19 lb
Common questions
Will these pistons increase my horsepower?
Yes, S&S Power Pack Piston Sets are designed to increase displacement, which, when combined with other matched components like cylinders and heads, leads to significant horsepower gains.
Do I need to rebore my cylinders for these pistons?
Cylinder fitment depends on your engine size and desired displacement. It's crucial to consult S&S specifications or a Harley technician to confirm proper cylinder matching before ordering.
Are these pistons a direct replacement for my stock Harley pistons?
These S&S Power Pack Piston Sets are engineered as high-performance replacements. While they offer OEM-quality, they are designed to increase displacement, which may require corresponding cylinder changes.
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 | T14-1020396 |
| 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