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S&S 1250cc Hooligan Big Bore Kit

Item: 359344

$1493.96

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Select Your Vehicle - Fitment Guaranteed

S&S 1250cc Hooligan Big Bore Kit


Easy installation with bolt-on parts requires no machining, or rebalancing. Just adjust delivery, ignition and you're all set!

  • Increase 1200cc engines to a 1250cc displacement
  • Includes 482 grind cams
  • Use stock heads, pushrods, and fuel system
  • Powder coat that matches stock finish
  • Made in the USA
Specification Details
Bore 3-9/16 in.
CARB Approved No
Color Varies (make selection above)
Compression Ratio 9.6:1
Country of Origin USA
Displacement 1250cc
Finish Powder Coated
Material Aluminum
Stroke 3-13/16 in.
Valve Lift .482 in.

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • XL1200C Sportster 1200 Custom 2000-2019
  • XL1200CX Sportster Roadster 2016-2020
  • XL1200L Sportster 1200 Low 2006-2011
  • XL1200N Sportster 1200 Nightster 2007-2012
  • XL1200NS Sportster 1200 Iron 2018-2021
  • XL1200R Sportster 1200 Roadster 2004-2008
  • XL1200S Sportster 1200 Sport 2000-2003
  • XL1200T Sportster SuperLow 2014-2018
  • XL1200V Sportster Seventy-Two 2012-2016
  • XL1200X Sportster Forty-Eight 2010-2022
  • XL1200XS Sportster Forty-Eight Special 2018-2019
  • XL50 50th Anniversary Sportster 2007
  • XLH1200 Sportster 1200 2000-2003

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Questions & Answers

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Do I use factory heads for this?

Yes, absolutely! S&S Hooligan big bore kits make it easy to bump the power on your 1200cc Sportster with just about everything you need in the box. They work with factory heads, pushrods and intake components making installation about as easy as possible.

By Tom
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