These S&S 1250cc conversion pistons for 1986-'21 HD® Sportster® Models increase the displacement of 883cc and 1200cc engines to 1250cc at 11.2:1 compression. May be used with stock 1200cc cylinder heads, but S&S CNC ported heads are recommended. Stock 1200cc cylinders and 1986-'2003 883cc cylinders may be bored to accept the 3-9/16" bore 1250cc pistons, but 2004-'16 883cc cylinders may not be used. Also available in a cylinder and piston kit.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2015-2016 |
Harley-Davidson |
XL1200C Sportster 1200 Custom |
Base |
| 2011 |
Harley-Davidson |
XL1200N Sportster 1200 Nightster |
Base |
| 2015-2016 |
Harley-Davidson |
XL1200T SuperLow 1200T |
Base |
| 2004-2006,2008 |
Harley-Davidson |
XL883 Sportster |
Base |
| 2015-2016 |
Harley-Davidson |
XL883N Iron 883 |
Base |
| 1986-1987 |
Harley-Davidson |
XLH1100 |
Base |
| 1988-1990 |
Harley-Davidson |
XLH1200 |
Base |
| 1986-1990 |
Harley-Davidson |
XLH883 |
Base |
