340 or 360???

You'd be better off building the 340 or a roller cammed 318 block with a stroker crank, for a possible 392 cubic incher. Your options with either of these blocks is the standard main journal size,which means you don't have to have a special oil pan. Chrysler castrated the 340 to build the 360. Bad choice,no wonder they've been bankrupt TWICE. Espescially if you can find a good 340 block and they are out there,you can, if you stroke it, build a larger combo from the 340 block. 360 blocks, in my opinion,make excellent boat anchors,due mainly to the facts of the larger mains, thinner cylinder walls, external balancing needed, and on and on. Remember,this white elephant was designed to please the smog people,at a time when we already had something that worked just fine for a perfomer small-block. Look further at the faact thar Mopar brought the 340 block back,as a replacement block. I think that, in itself, speaks volumes. 360' are a good motor-home or pick-up engine,real performance, although it costs a ittle more starts,where the factory did in '68, with a 340 block and good heads.