ive read a bunch of stuff that says you can only punch it out .020:, although ive heard of people going .030". correct me if im wrong, but is that CHP kit a big bore one as well, or just a stroker kit? if its just a stroker than you just have to overbore to make the walls clean, if at all.
i think the chp kit is a stroker with a .030 overbore...i requested more info from them last winter when i was looking into shortblocks but they never replied to numerous emails or calls. So i took my business elsewhere.
A bore of 3.74" (94.996mm) would theoretically give just over 5.1L but I don't think even a sleeved block is going to allow a bore that big.
Those Darton Sleeves SHM sells are pretty pricey at $1475. Might make more sense to buy a 5L stroker shortblock instead of trying to do it all with bore...