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S&S 883 To 1200cc Conversion Kit For Harley Sportster 1986-2015
  • S&S 883 To 1200cc Conversion Kit For Harley Sportster 1986-2015 - Silver
  • S&S 883 To 1200cc Conversion Kit For Harley Sportster 1986-2015 - Silver

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S&S Cycle 883cc To 1200cc Conversion Kit For Harley Sportster

Maybe you need more power from your 883. Maybe you're a handy type who realized he could buy an 883 and a big-bore kit cheaper than he could buy a 1200 Sportster. Whatever the reason you're contemplating enlarging your engine, know that S&S has got you covered with a high-quality kit that makes the job a snap.


  • Increases displacement from 883cc to 1200cc
  • Save time because pistons are already fit to the cylinders - they're ready to assemble right out of the box
  • No machining
  • No re-balancing of your 883cc flywheels
  • No cylinder head modifications
  • Available in wrinkle black and silver powdercoat finish
  • Big bore 3 1/2" cylinders
  • 9.6:1 compression ratio with stock 883cc heads
  • Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
  • Made in the USA

View Fitment Notes & Exceptions

Fitment Notes & Exceptions

  • You will need to purchase rocker box cover, carburetor, and intake gaskets for most bikes in addition to the kit contents
  • These parts require a good deal of technical skill to install correctly - it is the responsibility of the person assembling the parts to check all clearances and assembly specifications
This Product Fits:
Harley Davidson
Sportster Custom XL883C 19982009
Sportster Deluxe XLH883DLX 1989, 1990, 1991, 1992
Sportster Hugger XLH883HUG 19882003
Sportster Iron XL883N 20092015
Sportster Low/SuperLow XL883L 20052015
Sportster Roadster XL883R 20022012
Sportster XL883 20042009
XLH1100 1986, 1987, 1988
XLH1200 19882003
XLH883 19862003
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S&S 883 To 1200cc Conversion Kit For Harley Sportster 1986-2015
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A shopper asked: The notes at the bottom of the big bore kit upgrade state that you will need to buy rocker box cover, carb, and intake gaskets. THe Gaskets are listed with the kit description, are those the correct gaskets mentioned? What Carb part would I need? I've picked out the rockerbox cover, but the way the kit reads, are those absolutly needed?
I also have a question about the Roland sands Venturi Ronin air cleaner. What adjustments will I need to make if I install that?
I have never done any upgrades to a bike, but I have worked on a bike in the past, I will have knowledgeable help when doing this, I just need to know what all to buy.
Thanks in advance.

Mar 21, 2015
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Product Style RevZilla Item # Manufacturer Product # Availability
Black 958416 910-0296 In Stock: Ships within 24 hours
Silver 958415 910-0301 In Stock: Ships within 24 hours