TC) models use oversize crankpins

which are available seperately

Multiple applications

or with each overhaul

made from zinc plated steel

Knucklehead Engine 93" sissybar+ tillbehör TC) models use oversize crankpinsComes with an FHP420 cam & 8. 2 compression ratio. The S&S KN series (Knucklehead style) engines come very close to the original but it is not a replica engine. A number of improvements changes were made. 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 primary