S&S Cams For Harley-Davidson Twin Cam 103” Engine. 101 Horsepower And 105 Ft/Lbs Torque.

SSCam1If you’ve got a bike with a Harley-Davidson® Twin Cam 103™ engine, and you’re looking for a way to squeeze some extra juice out of it, S&S has just what you need. They’ve put together a selection of bolt-in cams with 2 new grinds and one current favorite that will produce amazing results in an otherwise stock 103” engine equipped with performance intake and exhaust.

Dyno-LateModelCams_635Whether you’re looking for low-end torque, overall performance, or the best top end horsepower, S&S got it. If you’re looking for stump pulling torque, the proven performance S&S 551 cams are still your best bet. The 551 cams have been around for a while, and they’ve proven themselves to be perfect for heavy baggers and trailer towing.

Dyno-LateModelCams_MRHP103The new S&S MR103 cams are for the rider who wants more of everything across the entire rpm range! They were designed to improve overall performance, with a wide, flat power band that starts right off idle and keeps on pulling right up to the rev limit. You won’t have to trade low end torque for high rpm horsepower, or vice versa. The MR103 cams produce more area under the power curve for maximum overall performance improvement.

If you’re hungry for horsepower, the all-new HP103 cams will satisfy your appetite for excitement. Take a look at the dyno chart below. Over 100 horsepower and 100 foot-pounds of torque from an otherwise stock 103” engine. Go daddy go!

If your hunger for horsepower goes beyond what these bolt-in cams can deliver, they offer the S&S 635HO cams. These high lift cams are perfect for S&S CNC ported cylinder heads with the .650″ lift valve springs. Not for the faint of heart!

S&S Cycle grinds their own cams in house at their factory near the village of Viola, Wisconsin, USA. By doing their own cam grinding, They’re able to keep tight quality controls on the process. S&S is also able to develop cam designs quickly with state of the art computer software, in house manufacturing, and a robust testing program. Go to S&S Cycle 103 Cams  for more information. (Not legal for sale or use on pollution controlled vehicles.)

Barnett Harley-Davidson

10 Responses to “S&S Cams For Harley-Davidson Twin Cam 103” Engine. 101 Horsepower And 105 Ft/Lbs Torque.”


  1. 1 BobS Feb 8th, 2014 at 2:09 pm

    Now that’s what I’m talking about! Nice numbers but nice curves too. Thanks for showing the details!

  2. 2 Jim Gianatsis / FastDates.com Feb 8th, 2014 at 9:43 pm

    Awesome power gain! I’d match it to a Mikuni HSR45 Easy Carb Kit and a nice silenced performance exhaust like from Vance & Hines.

  3. 3 Jim Gianatsis / FastDates.com Feb 8th, 2014 at 9:56 pm

    But just to keep it in perspective, while that S&S modified 1705 cc V-Twin Harley is putting out nearly 120hp…

    A box stock Ducati 1199cc Panigale V-Twin puts out 195hp / and 205 hp with the Ducati Performance Exhaust system. :)

  4. 4 Terence Tory Feb 9th, 2014 at 12:29 am

    JIm Gianatsis, you are comparing apples with eggs.A Panigale puts out about 160+ BHP at the rear wheel.RWHP figures on a dyno are really the only the only figures to bandy about.Take off about 50 horses from your Panigale conversation and knowledgeable people will believe you.

    Quote:”But just to keep it in perspective” Ho-Ho-Ho……..A few less lattes a day for you I say.

  5. 5 Zipper Feb 9th, 2014 at 6:47 am

    Jim /FastDates, I’ll take the Mikuni too. Keep in perspective the Ducati weighs at least 250 lbs.less. Add another 10 hp for that. ..Z

  6. 6 bobx Feb 9th, 2014 at 12:36 pm

    keeping it in perspective:

    the honda from has about 8 horses.

    and it weighs a lot less too.

    not sure what any of this means but i want those cams for my bike now.

  7. 7 bobx Feb 9th, 2014 at 12:37 pm

    honda grom that is..

  8. 8 Emmett Feb 10th, 2014 at 9:45 am

    Just to keep it in perspective, the HP and torque gains are nice and what I would like in my Dyna Switchback, but more importantly the S&S cams get rid of those troublesome chain drive stock cams from the motor company. I’ll be installing a set and hanging on tighter.

  9. 9 Mike Greenwald Feb 10th, 2014 at 9:57 am

    How are these numbers different than the 2003 FLHRSE with the optional chip and Stage 1 SE exhaust that was available eleven years ago?

  10. 10 Blackmax Feb 10th, 2014 at 8:09 pm

    I talked with S & S at the V-Twin Expo
    Always very gracious & kind with their time
    E-Z Start cams are the real deal
    the proof is right there in black & white (& red)

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