VT#: 11-9723
Wiseco piston kit is .030 oversize and is for a 3-3/16" bore . Piston set has a compression of 10;1 and includes rings.
**NOTE: Run engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears, in order to properly break-in new pistons and rings.
XL Sportster® 1972-1985