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S&S CYCLE Sidewinder Kit - Natural 91-7660

Part Number: 09031257
S&S CYCLE
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SKU:
09031257
MPN:
917660
Condition:
New
Availability:
Ships Same Business Day
Weight:
74.20 LBS
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MSRP: $2,879.95
Now: $2,591.96
Was: $2,879.95
— You save $287.99

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Description

The S&S Cycle Sidewinder Kit delivers the displacement and compression ratio serious Harley builders demand when pursuing maximum output from their platform. This is a complete engine rebuild solution—not a simple bolt-on—engineered for riders committed to extracting genuine performance gains through proper machine work and assembly. If you're planning a custom build that requires professional-grade internals and measurable horsepower increases, this kit provides the precision components to get there.

  • 3-5/8" bore cylinders
  • 9.75:1 compression pistons
  • Complete ring and gasket set
  • Standard flywheel assembly included
  • Fits 1991-1999 Harley models
  • Requires case boring operations
  • Crankcase clearancing needed
  • 77-89 pinion and oil pump gears required
  • Professional installation recommended
  • MPN: 917660
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Specs

BORE SIZE IMPERIAL:
3.625'
COMPRESSION RATIO IMPERIAL:
9.75:1
DISPLACEMENT:
96'
COLOR/FINISH:
NATURAL
TYPE:
ENGINE
STROKE LENGTH IMPERIAL:
4-5/8'
STYLE:
BIG BORE
UNITS:
KIT
MODEL:
SIDEWINDER
PRODUCT NAME:
PERFORMANCE KIT
RIDING STYLE:
STREET
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Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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