Hot 107
Elite HDF Member
Joined: Jul 2007
Posts: 3,903
Likes: 1,122
From: 48.067222,12.863611
You'll probably be cooler, depending on what your 96" has on it for exhaust. Factory bikes are 103 now anyway. 96 to 107 is a no-brainer IMO. I have a 107 all bore in my 03 RKC and it's cooler now than when it was 95"
Road Captain
Joined: Mar 2014
Posts: 668
Likes: 34
From: Florida
As others have stated the 107 build is proving to be very popular and reliable. I have seen some very impressive dyno sheets of full tilt 107 builds very near to slightly over 130 squared again these are max effort builds. I have the moderate Fuel Moto 10.25 wood 555 107 in my bike and it runs very well. I do use Wards fans and a Jagg 10 row cooler but I live in Phoenix AZ. and it gets a little warm here on occasion.
Seasoned HDF Member
Joined: Jun 2008
Posts: 5,478
Likes: 184
From: Mount Airy, MD
As has been already stated boring the 96" jugs to 107" is very common with proven results. You definitely want to put an oil cooler on if you do this. The MOCO added oil coolers when they started supplying the 103" engines in the new bikes as well.
Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
Likes: 88,324
From: Western South Dakota
Buy a 107 kit for 6-800, put in what ever cams you want.
Have your heads done for manual CR's and maybe flowed a bit.
It is not cheap, but day and night difference.
I would like to go that way myself but 96 is ok for the time being.
Have your heads done for manual CR's and maybe flowed a bit.
It is not cheap, but day and night difference.
I would like to go that way myself but 96 is ok for the time being.
Last edited by lionsm13; Jan 24, 2016 at 04:50 PM.
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Intermediate
Joined: May 2014
Posts: 26
Likes: 0
From: Ohio
Hot 107
Thanks for the help guys.. I'm currently at 103 with mild head work and S&S585 cams.. I'm gonna really work the heads and do a Rush Wrath 2into1 exhaust... Roeders Racing is doing my work and tuning
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Ultimate HDF Member
Joined: Jun 2009
Posts: 6,899
Likes: 3,412
From: OH
Roders does great work and they are a top notch tuning shop. They did my last bike.
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
We saw how well this worked, got with the engineering folks at Wiseco, and have had Wiseco Piston, Mentor, Ohio, manufacturing our proprietary VT1768's, and VT1767's piston/gasket kits for us since.
With an S&S .585/our Stage IV Heads/55mm HPI/Thunderheader, fellow forum member Target64's very reliable 107" showed 125 ft/lbs and 129hp, as an example.
Bored 6 sets of cylinders here last week alone.
No issues.
Scott