S&S CYCLE 96" Sidewinder® Big Bore Stroker Kit for '84-'99 HD® Big Twins - Wrinkle Black Finish - 91-7661
🚚 Estimated Delivery: 22 Oct - 29 Oct
CONFIRM FITMENT BEFORE ORDERING
Please confirm fitment for your bike below as we do not accept returns on parts ordered incorrectly.
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 80" Harley-Davidson® Evolution® big twin engine up to 96" displacement. This kit includes S&S 3-5/8" bore aluminum Sidewinder cylinders and forged pistons, a 4-5/8" stroke dynamically balanced S&S flywheel assembly, complete with S&S heavy duty connecting rods and mainshafts, head gaskets, base gaskets, exhaust gaskets. Stock cases will need to be bored out to 3 5/8".
- Kits include standard flywheel assembly, 3-5/8" bore cylinders, 9.75:1 pistons, rings and gaskets
- Does not include manifold, pushrods, or pushrod clips
- Made In the U.S.A.
- Cases must be bored to accept 3-5/8" bore cylinders, and a minor crankcase clearancing operation for the crankpin nut must be performed.
- 77-89 style pinion gear and oil pump drive gears must be used when installing S&S flywheels in 90-99 engines.
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.
Specs
| PRODUCT NAME | PERFORMANCE KIT |
| TYPE | ENGINE |
| STYLE | BIG BORE |
| MODEL | SIDEWINDER |
| BASE COLOR | BLACK |
| COLOR/FINISH | BLACK |
| STROKE LENGTH | 4-5/8" |
| DISPLACEMENT | 96" |
| BORE SIZE | 3.625" |
| COMPRESSION RATIO | 9.75:1 |
| UNITS | KIT |
| RIDING STYLE | STREET |