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Motor Vehicle Engine Parts

S&S Cycle Bolt-in Sidewinder 4" Big Bore Kits

Brand: S&S CYCLE

SKU: P1643887296146

$1,540.95

$1,402.59

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Bolt-in Sidewinder 4" Big Bore Kits

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Product Details

Highlights

  • Bolt in - no machining, balancing or splitting the crankcases; install can be performed with engine still in frame.
  • Cast Ductile Iron Sleeve in cast aluminum for superior heat transfer.
  • 88" engines are boosted to 100".
  • 96" and 103" engines are boosted 110".
  • 10.5:1 compression (w/ stock 85cc heads) makes for a very streetable and dependable engine that also responds well to performance cams.
  • Complete kit includes cylinders, forged pistons, rings, piston pins, clips and gaskets.
  • Not for use with S&S 79cc heads.
  • Not recommended for trike models.

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! Wrinkle.

Specifications

Bore Size Imperial4.000"
Color/FinishBlack
Compression Ratio Imperial10.5:1
Displacement100"
ModelSidewinder
Riding StyleStreet
Stroke Length Imperial4"
TypeBig Bore
UnitsKit

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