✓ 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: T14-1020386
S&S Cycle Power Pack Forged Piston Set - Harley-Davidson Engines
$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.
S&S Cycle Power Packs are forged piston sets engineered to increase displacement and horsepower in Harley-Davidson engines. These direct bolt-in replacements deliver measurable power gains over stock pistons, providing a straightforward path to enhanced performance.
Why riders pick this
- Forged piston construction for durability
- Increases engine displacement for more power
- Direct bolt-in replacement for stock pistons
- Engineered by S&S Cycle for reliable performance
- Delivers measurable horsepower gains
If you're looking for a direct route to more power in your Harley-Davidson, the S&S Cycle Power Pack forged piston set is an excellent choice. These pistons are designed for a straightforward, bolt-in installation, replacing your stock units to immediately boost engine displacement and horsepower. The forged construction ensures they can handle the increased demands of a higher-output motor.
Direct Bolt-In Performance
- Forged piston construction for superior strength and longevity
- Increased displacement compared to stock pistons
- Direct bolt-in installation for ease of upgrade
- S&S Cycle engineering ensures precise fit and reliable operation
- Delivers measurable power gains over stock components
Optimize Your Engine's Output
The S&S Cycle Power Pack offers a tangible performance upgrade without requiring extensive engine modifications. This makes it an ideal choice for riders who want a significant improvement in horsepower and torque with a manageable installation process. To get the most out of this upgrade, a proper fuel and ignition tune is strongly recommended to optimize the performance gains from the increased displacement. Always confirm compatibility with your specific engine displacement and model year.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 310-1396A
- Category: Engine Components / Piston Sets - Powersports
- Weight: 44.19 lb
Common questions
Do I need new cylinders or can I use stock bores?
S&S Cycle Power Packs are designed as a direct bolt-in upgrade for stock cylinder bores. However, it's always recommended to verify that your bore size matches the piston specifications before ordering.
Will I need to tune my bike after installing these pistons?
Yes, a fuel and ignition tune is strongly recommended after installing these pistons. This will optimize performance gains from the increased displacement and ensure your engine runs efficiently and reliably.
What kind of performance increase can I expect?
While we cannot provide specific numbers, these pistons are designed to deliver measurable power gains over stock components due to increased displacement and efficiency. Actual gains will depend on your specific setup and tune.
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 | T14-1020386 |
| 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