S&S, 3-1/2" replacement cast piston kit. Std - 84-99 Evo Big Twin (NU) A19 Sized to fit your stock

Sized to fit your stock fenders and as sticky as chewing gum

Copper washer

and a complete installation and tuning booklet

for easier installing

S&S, 3-1/2" replacement cast piston kit. Std - 84-99 Evo Big Twin (NU) A19 Sized to fit your stockStock replacement cast flat top piston. An excellent choice to overhaul your stock Evolution Big Twin. 3 1 2" " bore with stock 4 1 4" stroke. With standard 8. 5: 1 compression ratio. Pistons include wrist pins, wrist pin clips and piston rings. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a