[cnavarro]

The mindset of the 3.5 being too much stems from the fact that the walls are thinner and that it is questionable that flame ringing should be done to a 3.5 cylinder just for that same reason, but if the boost is reasonable (under a bar) and good head studs are used, I wouldn't be concerned. Normally aspirated, it's a mute point. I've done quite a few 102mm '3.7' sets N/A for both street and track.