S&S 883 → 1200 cc Conversion Kit

 PDF Instructions (698 KB)

S&S 883 → 1200 cc Conversion Kit

Boost any 883cc Harley-Davidson Sportster to 1200cc without hassle. No machine shop, no rebalancing your stock 883cc flywheels, no cylinder head modifications… The dished piston dome keeps compression down to a streetable 9.4:1 with stock 883cc heads. This kit includes

pre-honed cylinders
pistons
rings
wristpins
keepers

and is ready to assemble out of the box. Installing this kit takes then same time as replacing a stock top end. It’s just more fun when you’re done.

The cylinder fin profile does not perfectly match the fins on 2004 and later stock heads.

fits Sportster 883 cc 1986-2020
aluminum / cast aluminum
with gaskets, assembly lube, instructions

Lean running condition after conversion

This conversion causes a lean fuel mixture, the fuel metering system has to be readjusted.

Item №

Version

net price*

unit

Availability in warehouse Germany

black, wrinkle finish

* United States of America: Tax free shipping. Please check your local import fees.

Spare parts:

S&S Pistons Evo Sportster Conversion 883cc-1200cc

An easy and economic way to increase displacement of 883 and 1100 Evo Sportster models to 1200cc. This kit with 3-1/2” bore forged pistons only requires to bore the stock cylinders from 3 inch to 3-1/2 bore, or purchase new 3-1/2 inch bore cylinders. No combustion chamber modifications or flywheel rebalancing is necessary. Compression ratio will be a very streetable 9.5:1. The piston skirts are coated for reduced friction during break-in.

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Have any questions?

Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com