S&S Cycle 131 in 4-5/8 in Stroke Hot Set Up Kit, 2017+ M8, Black Granite with Highlight, Part 320-0623

S&S Cycle 131 in 4-5/8 in Stroke Hot Set Up Kit, 2017+ M8, Black Granite with Highlight, Part 320-0623

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  • $2,695.95
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The S&S Cycle 131" kit for 2017 and up M8 is the perfect sleeper package. Boost your engine displacement to get some big numbers at the rear wheel, without advertising it. The kit bolts in with no machine work required and keeps your bike looking stock for the "sleeper" approach. Our 131" kit includes all the necessary gaskets for the installation and if you want to tell everyone what you have, a new 131" badge is included for your cam cover.
  • Huge displacement increase means huge power increase
  • Original engine serial numbers are retained
  • Powder coat finish matches factory finishes
  • Includes 131" Cam Cover Badge
  • Works with stock crankcases
  • Retains stock engine height
  • 4.250" bore, 4.625" stroke
  • 11.0:1 compression ratio
  • With headlight

The S&S Cycle 131 in Hot Set Up Kit is designed for 2017 and newer M8 engines. It increases engine displacement for greater rear-wheel power while maintaining a stock-appearing sleeper approach. The kit bolts in without machine work, works with stock crankcases, retains the stock engine height, and allows the original engine serial numbers to remain in place.

This kit features a 4.250 in bore, 4.625 in stroke, and 11.0:1 compression ratio. It includes the necessary gaskets for installation and a 131 in cam cover badge. The Black Granite with Highlight finish is intended to match factory finishes. Manufacturer part number: 320-0623. Vendor part number: 320-0623. Fitment is for 2017 and newer M8 engines. This product is not CARB approved.

Features:

  • Fitment: Designed for 2017 and newer M8 engines
  • Displacement: 131 in engine kit for increased displacement and power
  • Installation: Bolts in without machine work
  • Crankcases: Works with stock crankcases
  • Engine height: Retains stock engine height
  • Serial numbers: Original engine serial numbers are retained
  • Bore and stroke: 4.250 in bore and 4.625 in stroke
  • Compression ratio: 11.0:1
  • Finish: Black Granite with Highlight powder coat finish matching factory finishes
  • Included components: Installation gaskets and 131 in cam cover badge
  • Manufacturer part number: 320-0623
  • Vendor part number: 320-0623
  • Regulatory status: Not CARB approved



Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Units Per Sku: 1
Regular Stock: t