✓ VERIFIED
Jun 21, 2017
product is shipped without crankcase ventilation parts that are clearly part of kit.
S&S CYCLE
SKU: T14-662685
S&S Cycle 1200cc Conversion Piston Kit - Harley Sportster 883cc
$3.498.000,00
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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.
This S&S Cycle 1200cc conversion kit offers a direct path to increased displacement for 883cc Harley-Davidson Sportster engines. It's engineered to provide a significant performance boost without requiring extensive machine work, flywheel rebalancing, or cylinder head modifications. The dished piston design ensures a streetable compression ratio with your stock 883cc heads.
Why riders pick this
- Converts 883cc Sportster to 1200cc
- No machine work on cylinders or heads
- Stock flywheels do not require rebalancing
- Dished pistons for streetable compression
- Straightforward top-end installation
Riders seeking to unlock more power from their 883cc Harley-Davidson Sportster will find this S&S Cycle 1200cc conversion kit to be an efficient and effective upgrade. Designed for a straightforward installation, this kit allows you to transform your engine into a more potent 1200cc configuration, delivering a noticeable increase in both torque and horsepower. The beauty of this kit lies in its ability to provide a substantial performance gain without the complexities often associated with big-bore conversions.
Simplified Power Enhancement
- Requires no cylinder boring or cylinder head modifications
- Flywheel rebalancing is not necessary due to matched piston weight
- Dished dome piston design maintains a streetable compression ratio
- Installs with the same process as a standard top-end refresh
Unlock Your Sportster's Potential
This S&S Cycle conversion kit is a smart choice for any 883cc Sportster owner aiming for a more exhilarating ride. By designing the pistons to match the weight of the stock 883cc units, S&S ensures that your factory flywheels will operate smoothly without needing rebalancing. This, combined with the no-machining requirement, makes the upgrade process much simpler and more accessible, allowing you to get back on the road with more power sooner.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 910-0688
- Category: Engine Components / Piston Sets - Powersports
- Weight: 22.6 lb
Common questions
Do I need to machine my cylinders or cylinder heads for this conversion kit?
No, this kit is designed for direct installation into stock 883cc cylinders and works with stock 883cc cylinder heads, requiring no machining.
Will my stock flywheels need to be rebalanced with these new pistons?
No, the pistons in this kit are weighted to match stock 883cc pistons, so your stock flywheels will not require rebalancing.
What is the intended compression ratio with this kit?
The dished dome design of these pistons is engineered to deliver a streetable 9.4:1 compression ratio when paired with stock 883cc cylinder heads.
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 | T14-662685 |
| WEIGHT | 22.6 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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8 RATINGS
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✓ VERIFIED
Nov 6, 2025
After much fabrication and alternative parts, it is installed. Not having a manifold ported for a map sensor complicates things significantly. I wasn’t going to settle for some pro rated refund because it was out of box. Much work left to do, but I’m committed to making it work.
✓ VERIFIED
Aug 5, 2022
Havent put it on yet but if its as good as the customer service i recieved getting the carb itll be breezy!
✓ VERIFIED
Apr 8, 2021
Fast shipping and it is in stalled runs great
✓ VERIFIED
Dec 3, 2020
Carb was installed per the O.E.M. Instructions, set-up and it runs and performs better than new! The JP Cycle online order was perfect!
✓ VERIFIED
Sep 14, 2020
I love the upgraded carburetor and intake system S&S .. great product and great addition too my harley.
