Other than the injector pump probvlem, there shouldnt be any. The olds 350 diesel, block crank rods and pistons shouldnt ever let go, BBC isnt universal, its for those that want to give someone alot of money to recieve a fast car, none of the pride of doing it yourself, none of the pride of trying something new and succeding.
The 350 diesel has 3" mains and gas SBO rod journals.(strong)
A very easy change would be toswap the diesel hads and intake for old gas olds heads and intake, wont be quick, but itl run forever The diesel pistons and rods weigh a ton, but are as strong as strong can be.
Another option would be run it til it dies,(it will outlive you, plus the great mileage and low fuel costs) and replace it with a direct bolt in SB or BB olds. I had a 81 supreme diesel, replaced it with a 461, bolt in and go. \
Another option would be to keep the diesel block, Olds 425 forged crank with counterweights cut 3/8 inch and SBC rods (stroked or destroked crank, and custom or off the shelf chevy pistons with some killer heads and go fast forever, no need to worry about a soft block(it isnt chevy, its olds, so no toothpaste blocks) Email me for more info< please no Olds hate mail or chevy rules mail
rocket403@yahoo.com
Joe