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ARH Custom Custom Motorcycle Parts and Accessories ARH Custom Custom Motorcycle Parts and Accessories

S&S 88CI 3-5/8 Inch Big Bore Kit 66-84 Big Twin (91-9001)

  • S&S 88CI 3-5/8 Inch Big Bore Kit 66-84 Big Twin (91-9001)
£1,745.29 inc.VAT
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Our Price Promise

Seen this item cheaper on another website? Let us try and match it!

We do our upmost to keep our prices competitive but due to the number of items we sell, you may occasionally find a better price advertised elsewhere. If you have seen a cheaper price on another website let us know by filling in this form. If we’re able to match the price, we’ll look to respond via email with a unique discount code within 1 hour (during working hours) so you're not waiting too long.

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  1. The item must be identical to the one on our website listing and must show as being available.
  2. Price match applies to items sourced from authorised UK retailers only, not private sellers.
  3. Prices will only be matched from UK based websites with prices in GBP.
  4. ARH Custom reserve the right to price match only one of each item per customer.
  5. ARH Custom reserve the right to withdraw the price match policy at any time.

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EU stock Estimated shipping date between 26 Nov and 29 Nov.

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 26 Nov and 29 Nov.

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S&S 3-5/8" bore replacement cylinders for the Sidewinder kits that S&S offers with 7.5:1 compression cast pistons for 1966-1984 Harley-Davidson® big twin models.

  • 3-5/8" bore X 5.330" cylinder length
  • Includes pistons for 4-1/4" stroke, gaskets and hardware
  • Gloss black finish
  • 1966–'84 big twin

 

Specifications +

Stroke Length: 4-1/4"
Product Name: Big Bore Cylinder Kit
Style: Big Bore
Base Finish: Powder-Coated
Base Color: Black
Bore Size: 3,625"
Color/Finish: Black| Powder-Coated
Compression Ratio Imperial: 10.8:1
Compression Ratio: 10,8:1
Material: Aluminum| Cast
Units: Kit
Displacement: 88"

Part numbers +

  • 91-9001
  • 0931-0690
  • 09310690
  • 512411
  • ARM114215

Fitment +

    HARLEY DAVIDSON
  • FL 1200: 1970-1977
  • Electra Glide - FL 1200: 1970-1977
  • Electra Glide - FLB: 1966-1969
  • Electra Glide - FLFB 1200: 1966-1969
  • Electra Glide - FLH 1200: 1970-1980
  • Electra Glide - FLH 1340: 1979-1984
  • Electra Glide - FLHB: 1966-1969
  • Electra Glide - FLHC: 1979-1983
  • Electra Glide - FLHFB: 1966-1969
  • Electra Glide - FLHS: 1979-1980
  • Electra Glide Standard - FLHT: 1983-1984
  • Electra Glide Classic - FLHTC: 1983-1984
  • Electra Glide - FLHTE: 1984
  • Electra Glide Special - FLHX: 1984
  • Tour Glide - FLT: 1980-1984
  • Tour Glide Classic - FLTC: 1980-1984
  • Super Glide - FX: 1971-1979
  • Sturgis - FXB: 1980-1982
  • Disk Glide - FXDG: 1983-1984
  • Super Glide - FXE: 1974-1984
  • Super Glide - FXR: 1982-1984
  • Disc Glide - FXRDG: 1984
  • Pursuit Glide - FXRP: 1984
  • Low Rider - FXRS: 1982, 1984
  • Low Glide - FXRS: 1982, 1984
  • Super Glide II - FXRS: 1982
  • Sport - FXRT: 1984
  • Low Rider - FXS 1200: 1977-1979
  • Low Rider - FXS 1340: 1979-1983
  • Low Rider - FXSB: 1984
  • Wide Glide - FXWG: 1980-1984

Delivery +

All orders are shipped with either DPD, Fedex, UPS, DHL or Royal Mail. The courier used to ship your order is determined by ourselves once your order has been placed and normally depends on the size, volume and the shipping destination. The selected courier for your order will be quoted in your order confirmation email which you will receive once we have processed your order. Once your order has been shipped, this will be confirmed via email and you will receive a tracking number so you can keep an eye on your shipments progress.

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