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I've known plenty of guys with the 103 (all using different cams) and they love it. I have heard from others (and from a tech or two at the local dealership) that the MoCo is having trouble with the 110. Haven't heard about the 107 as of yet.
A couple years ago I got a good deal on a new SE 4 3/8 crank and over the winter my 88 became a 103...111hp/117ft lbs...
I considered boring the spigots and going "larger" but there comes a point when other components have to be upgraded as well (ie clutch) and with only an SE pressure plate my bike has run hard for 2 years now with no problems. Having said that; I'm planning on taking off the top end this winter to check the crank and heads; if the crank has to come out for re-bearing or whatever I'll go 113inch. The 110 has a different spigot that once done won't allow other cylinders to be used; at least that's the way I read it in the SE catalog...as far as aftermarket cylinders; I'm sure they're OK, but I prefer to use as much SE stuff as I can. Check the torque below 2500rpm on the dyno sheet; that's the kind of curve I like and a 113 should move the numbers up nearly 10%.....
So we have a few people here who have done the 103 kit.
I have seen recommendations for the Axtell 107 kit. Axtell offers a 110 kit as well
HD is now offering the CVO 110 kit.
Thoughts? I am quite happy with my 96 at the time. But being one who never leaves well enough alone .... you get the idea.
I'm also in CT, just picked up a new WG from HD of Danbury, had them throw in a CVO 110", fully under warrantee. Love it for what it is, AFAIK all the initial 110" issues are no longer a big deal.
I was going to purchase the 110 and had the money in hand. HD asked what I was looking for and I told them more power. They told me to go 103 and not the 110. The 110 has higher emission standards and the 103 will leave the 110 standing still.
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