Stroker 340>416 Build Advice

450 easy is right with a 416 my 340 340 makes that ad it is mild TF heads did it comp 20-227-4 cam crap heavy speedpro forged pistons 11:1 comp not much else , stock forged crank 1.6 rockers you have to go with what is available these days wanted a light crank and Mahle pistons , could not find them . lucky to find the heads (thank you MR B3 I think) ?