S&S CYCLE SKU: T14-662685

S&S Cycle Conversion Kits — 1986-2019 Harley-Davidson Sportster Models

$3.825.000,00
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S&S Cycle 1200cc conversion kit for 883cc Harley-Davidson Sportster engines, allowing a straightforward bore-and-stroke upgrade without machine work, flywheel rebalancing, or cylinder head modification. Dished pistons maintain a streetable 9.4:1 compression ratio with stock heads, and installation time matches a standard top-end refresh.

Features

  • No machine shop required
  • No flywheel rebalancing needed
  • Piston weight matches stock 883cc pistons
  • Dished dome design for 9.4:1 compression ratio
  • Works with stock 883cc cylinder heads
  • Standard top-end installation time

Specifications

  • Brand: S&S Cycle
  • Manufacturer Part #: 910-0688
  • Category: Engine Components / Piston Sets - Powersports
  • Weight: 22.6 lb

Fitment

Fits 1986-2019 Harley-Davidson Sportster models with 883cc engines.

Frequently Asked Questions

Do I need to machine the cylinders or heads?

No — this kit requires no cylinder or head modifications. Direct installation into stock components.

Will the stock flywheel work, or do I need to rebalance it?

Stock flywheels work without rebalancing because the new pistons weigh the same as factory 883cc pistons.

What's the compression ratio with stock heads?

9.4:1 — streetable and safe with pump gas when using stock 883cc cylinder heads.

How long does installation take?

Installation time matches a standard top-end refresh, so budget the same labor as replacing stock pistons and rings.

Will this fit my 1200cc Sportster?

This kit converts 883cc engines to 1200cc. If your Sportster is already 1200cc, you do not need this conversion.

BRANDS&S Cycle
TYPEPiston Sets - Powersports
SKUT14-662685
WEIGHT22.6 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.5
8 RATINGS
5★ 7
4★ 0
3★ 0
2★ 0
1★ 1
✓ VERIFIED
Jun 21, 2017

product is shipped without crankcase ventilation parts that are clearly part of kit.

— Anonymous
✓ 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.

— Bruce G
✓ 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!

— Anonymous
✓ VERIFIED
Apr 8, 2021

Fast shipping and it is in stalled runs great

— Anonymous
✓ 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!

— Anonymous
✓ VERIFIED
Sep 14, 2020

I love the upgraded carburetor and intake system S&S .. great product and great addition too my harley.

— Anonymous