Well as we all know the 307 in my H/O is a dog!, so im looking around for a nice 350 olds motor to rebuild, i know the earlier years are better blocks, like pre 75 maybe?? My gearhead cousin told me to look for an olds 350 diesel block, any imput on that? Also i'd like to keep the engine bay as stock looking as possible, and kind of disguise the 350, from what i understand prettymuch everything from the 307 should bolt right up. So im just looking for some imput as to what to look for, block numbers, years, prices, etc.