S&S CYCLE 96" Sidewinder® Big Bore Stroker Kit for 1970-'84 HD® Big Twins - GlossBlack Finish 91-9134

An S&S 96" 3-5/8" Sidewinder big bore stroker kit is an economical route to a larger displacement engine. This kit contains nearly everying needed to take a stock 74" or 80" HD^® shovelhead engine up to 96" displacement. This kit includes S&S 3-5/8" bore high tensile cast iron Sidewinder^® cylinders and forged pistons with wristpin and rings, a 4-5/8" stroke dynamically balanced S&S flywheel assembly, complete with S&S heavy duty connecting rods and mainshafts, S&S stainless steel head bolts, base nut, S&S adjustable chromoly steel pushrods, head gaskets, base gaskets, exhaust gaskets, and an S&S heavy duty top motor mount. Compression is 9.1:1

• Sidewinder Big Bore Stroker Kit
• Contains nearly everything needed to take a stock 74" or 80" H-D. Shovelhead engine up to 93" or 96" displacement
• Includes 3.625" bore high tensile, cast iron sidewinder cylinders and forged pistons with wrist pin and rings, a 4.5" or 4.625" stroke, dynamically balanced S&S flywheel assembly complete with S&S heavy duty connecting rods and mainshafts, S&S stainless steel head bolts, base nut, S&S adjustable chromoly steel pushrods, head gaskets, base gaskets, exhaust gaskets, and an S&S heavy-duty top motor mount
• Made in the U.S.A.
  
  NOTE: Crankcases must be bored to accept larger 3-5/8" bore cylinders IMPORTANT: 1977-’89 style pinion gears, spacer, and nut are required when installing S&S flywheel assemblies. For installation in 1990-’99 or scratch built engines, order S&S Pinion Shaft Conversion Kit 33-4148 Not legal for sale or use on CA or EPA pollution controlled vehicles 1978 and later. Cylinders in this kit are longer than stock - a longer manifold must be purchased separately
  

Fitment Guide

Specs