Product Description These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .020in - 92-1422 MSRP: $469.95 Was: Now: $426.66 Add to Cart
S&S Cycle 86-03 XL 3-5/8in Piston Ring Set - .010in - 94-1211X MSRP: $64.95 Was: Now: $58.96 Add to Cart