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What I have is a 83 carbureted engine that needs a new short block. I have a 85 that was fuel injected, I know the injected head is different but am not sure on the short block. Are they interchangeable or not.
The main difference in blocks are: up to 87 have larger main journals, 95+ use oil pump driven directly off the timing belt.
Some early EFI blocks have the fuel pump hole covered with a bolt on plate, others didn't get the hole machined out. That would be the only item that *could* affect your plan.