Here is some new info I found on the stock 103 heads, tifwiw, but I saw on another news group where a guy when ahead and used the domed 103+ stroker pistons in the stock cvo heads and they clayed out fine and the bike runs great .
here is the link:
http://groups.msn.com/HarleyTechTalk/tc88fathead.msnw?action=get_message&mview=0&ID_Message=824887&LastModified=4675556544222232777Also, I sent him an email and this is what I got back:
Yessir, that's correct. Clay'd everything, and the
initial results are posted in the dyno section of HTT.
> Just to clarify what you posted since a lot of
> people have been trying to
> fill up the huge 94cc stock hemi shaped CVO 103
> heads with something to get
> better than 9:1.
>
> Are you saying you used the 22483-04 103+ big bore
> 10.5:1 pistons in the
> stock CVO SE103 heads that come on all the CVO bikes
> since 03 with no
> rework? Or are you using the 103+ heads?
>
> Big big thanks,