TR should have some good answers for you about head gasket size. thats why i went with one of his package deals, plus to many hands on it & it gets to crazy
for my old brain
fastfreddy, I agree with you 110%! That is definitely the way to go! and I'm sure that the Builders prefer it that way also. (less finger pointing if/when there are issues), and you know the old saying about too many cooks spoiling the pot...
T.R. got the heads yesterday, the SE 58mm TB is shipping to him 1/27, I am going to wait until he receives the TB before I take up any more of his time...
'Just going to ask him to source the Cometics, give me the p/n(for my parts list) and send the gaskets back with the heads.
The only reason that I went this route, was my deal with my Dealer, and the resources available to me.
I have put a lot of pressure on myself (my Dad was a Sr. Master Chief Machinist Mate, I was a Mechanic for almost 20 yrs) to spec out the proper components, get everybody on the same page, and minimize issues during final assembly.
Don't get me wrong, it's freezing (had sleet yesterday) here in NW Florida, so the riding is minimal, and
I'm having a blast, learning tons with this build!!!
With the Professionalism, Craftsmanship, and Cutting Edge Knowledge,(and oh yea, patience w/me

) of Oasis Cycles, T-Man Performance, and (yes) My Dealer, Heritage Cycles Harley-Davidson of Ft. Walton Beach, FL, I expect little, if any, issues
Ed