S&S Cycle 4" Sidewinder Big Bore Kit for 1999-'06 HD® Big Twin Models - Silver

Vendor: S&S Cycle

Available: In stock

SKU:

$1,095.95

*This is priced for in-store pick up only! Shipping will be an additional charge. Please call 508-413-2500 before placing your order.*

Inspired by our Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. Bolt-in kits do not require machining, rebalancing or engine removal, and include just about everything you’ll need to complete the installation. The biggest cylinder bore that can be installed in a stock crankcase without machining!

Features & Benefits

  • Low friction Ductile Cast Iron liner
  • 10.5:1 Compression
  • Bolts in. No machining, balancing, or splitting the crankcases
  • 88" engines are boosted to 100"
  • Complete kits include cylinders, pistons, gaskets, and instructions
  • Wrinkle black cylinders – matches stock finish
Stroke Bore Cylinder Length Piston Type Dome Volume 83cc CNC Heads 85cc Stock Heads 89cc S&S Heads
4    4.00" 4.937" Forged 8.75 pop up 10.8:1 10.5:1 10.1:1

*Not compatible with S&S 79cc Super Stock® heads

 

Disclaimer

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution