S&S KN93 Complete Assembled Knucklehead Engine temp1421 2005 Sprint 1050 ST 1050cc

2005 Sprint 1050 ST 1050cc

Remove your stock dull black switch caps and replace with these chrome ones for a brand new look

1981 XJ - 550cc

125” bore engines with stock or S&S stud pattern (ideal for custom applications and for use with the S&S 124” Hot Set Up Kit

Designed to work best with higher compression ratios

S&S KN93 Complete Assembled Knucklehead Engine temp1421 2005 Sprint 1050 ST 1050ccS&S KN93 Complete Assembled Knucklehead Engine The S&S KN series (Knucklehead) engines come very close to the original but it is not a replica engine. A number of improvements and changes were made to this engine. It comes with 48 99 engine mounts and will not fit OEM Knuckle frames. A later, 58 65 style flywheel assembly is used, with the splined sprocket shaft and a Timken sprocket shaft bearing for increased strength. Therefore a 54 65 style tin