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Est. 1957
S&S Cycle

S&S Cycle 99-06 BT 4in Bore 4in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

$1557.17

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 99-06 BT 4in Bore 4in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Key Features

  • Although not mandatory, we recommend adding an oil cooler to bikes ridden in warmer climates
  • Complete kits include cylinders, pistons, gaskets, and instructions
  • Bolts in. No machining, balancing, or splitting the crankcases
  • Wrinkle black cylinders - matches stock finish
  • Low friction Ductile Cast Iron liner
  • 88" engines are boosted to 100"
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About this part

Product Details

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!

Description

Wrinkle Black

Specifications

Brand
S&S Cycle
Manufacturer Part #
910-0646
UPC
910-0646

S&S Cycle 99-06 BT 4in Bore 4in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

$1557.17