I picked up a standard bore 340 block cheap and later came to realize the caps that came with were not what it was born with. I found a new gear drive set for about half price and figured it would cure any ills from line boring. I'm going to get the caps fitted and either fit a 273 crank I have with some light weight pistons and rods, or go with a 4" stroker setup. I don't have a vehicle to put it in yet, but that should get taken care of once the path is decided.