S&S 106” Top End Kit for 2007 And Up Big Twins

ssbigborekitThe beauty of this 106″ kit from , in addition of making your engine bigger, is that it’s an easy installation without need of any machining. No need to  rebalance flywheels, to bore the crankcases or even split the cases. That’s about as easy as it gets to get more displacement. Time and money saved!

You just do the cylinders swap. These S&S cylinders are available with the same silver or black wrinkle powdercoat as Harley models, so there is no risk of mis-match with the rest of your stock engine. In fact, this kit is only offered with S&S cylinders because, even though stock cylinders can be bored to fit the 3.927” pistons, S&S is not confident that the material used to make the stock cylinder liner and spigot is strong enough.

The cylinder liner material in S&S cylinders is much stronger, and has proven its ability to stand up to the added power in numerous dyno pulls, street miles, and a lot of quarter mile drag strip runs. The 106” big bore kit yields excellent results with stock cylinder heads, but a performance cam is recommended to get the best performance and to make the engine easier to turn over at start-up. The SuperFlow® Cycledyne shows an increase of nearly 30 horsepower and 20 ft/lb of torque with the 106” top end kit. .

6 Responses to “S&S 106” Top End Kit for 2007 And Up Big Twins”

  1. 1 1 JOKER Oct 30th, 2009 at 4:54 am


  2. 2 Doc Robinson Oct 30th, 2009 at 6:35 am

    Very, very cool indeed. These should prove extremely popular given S&S’s excellent reputation for quality hot up parts as well as complete motors. Plus they give that little bit extra bragging right over the Motor Company’s 103ci kit.

  3. 3 tejasandre Oct 30th, 2009 at 12:57 pm

    $695 according to the s&s site.

  4. 4 jatinder pal Oct 31st, 2009 at 1:19 am

    695….no way,there must be some more xpenses….

  5. 5 Scott Sjovall Nov 2nd, 2009 at 8:59 am

    Everything needed for the 106″ conversion is included except the labor. Cylinders, Pistons, rings, clips and gaskets fit and ready to install. Install is the same as a 103″ kit – easy.

    Thanks and enjoy!

  6. 6 George D Oct 28th, 2010 at 5:33 pm

    $648 at J&P….

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