124" monster big bore kit harley

Discussion in 'Engine, Fuel and Exhaust' started by hkhajah, Nov 30, 2011.

  1. hkhajah

    hkhajah Member

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    Hi, i need your help regarding this matter. Im thinking of upgrading my bike which is a 2005 Screaming Eagle Electra Glide which has the 103" engine to the 124" MONSTER BIG BORE KIT HARLEY, i just need to know.... do i need to change the heads. this kit is by REVOLUTION PERFORMANCE and im just not clear about the heads. All thats mentioned is that i got to bore the case. Thank you.
     
  2. HDDon

    HDDon Experienced Member Contributor Retired Moderators

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    After reading their write up it would appear that you will be using your existing heads. I would think that some flow work would be advised to get the most from this set up. I would not attempt this set up without having the fly wheel welded trued and balanced. I would also opt for timkin style bearings for the flywheel/crank. You will also need a larger throttle body to feed this "monster".
     
  3. hkhajah

    hkhajah Member

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    thanks for your reply.. i will buy the kit

    What throttle body size should i put with this kit do you advize
     
    Last edited by a moderator: Dec 1, 2011
  4. HDDon

    HDDon Experienced Member Contributor Retired Moderators

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  5. nitroracer

    nitroracer Member

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    we`ve done many 124" builds.go with S&S parts.the REV. PERF. cylinders are nikasil coated and youll have nothing but problems with them