I am looking for advise on building my 88" Road King to a 103 or 107. And who you would use to go with the build.

To start with, I was thinking about building a 95 or 98 engine. But, after looking around I do not want to spend 650 to weld and balance my stock crank. So I am thinking about buying a SE 4 3/8 crank and have it welded and balanced or just buying a S&S crank if I can just drop it in.

Then I am trying to decide to go with HQ, Hillside or Bishops for the build parts.

I am leaning toward Bishop's because of the fact they gave me a great price on the parts including the bearing conversion and balance/weld the crank. Also, they are only about four hours away and can have them dyno the bike after the build. But they are against the 98 build due to cylinder thickness.

Hillside and HQ gave me about the same price on a 98 build but did not include the machining work or crank. That would have to be done at Darkhorse. I am looking at spending about 1400.00 for a new crank, 650.00 to balance/weld a new SE crank and 400.00 for bearing conversion.

Please let me know if you have any advise on doing this build and if you have used any of these builders. Also, if you know were I could have the dyno work done with in four hours or so from Columbus, Ohio....Thanks

 

If you're going to change cranks, you may as well have the case bored and go to 117".

Otherwise, I think your best power per $$ is 98".

 

my thoughts exactly at least a 113

 

what about 4&1/8" bore by 4" stroke = 107"?...methinks it's a good value!

 

absolutely, i would not trade my 107 for anything with a longer stroke. my stock wheels have held up just fine. 7500 shifts even..

 

Timken bearing conversion here is 325.00.
Scott

 

The new R&R 5 piece rebuildable cranks are being tested now and are slated to be available to the public the first of the new year. This would be a life time crank with replaceable shafts. The money spent on this crank will hold its value long after the press together crank is used up. Be sure to include the R&R cnc ported head packages in your options as the savings in tuning time is substantial.

 

I have a Road King as well and have a 117" build. It is definitely worth the little extra to get this much more power.

 

well i know that a good running bike is going to need a good tune now are they going to supply yoiu with a break in map as well

 

Please let me know when going from an 88 inch engine to a bigger build, lets say 103 inch and up. Has anyone experienced more vibration in the handlebars or footboards while ridding around town or on the interstate then they did on there stock engine? I know that would drive me crazy on a trip and would stay with a smaller build if that was the case.