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difference between long block 300d 1976 and 300cd 1978?

Submitted by daniel elixir on 20 February 2008 - 6:50am.
I was told that the long block from a 1976 300d could be assembled with the rest of a 300cd engine and there would be no "issues". At the very least I am seeing that the oil pressure hose will need an extension (the oil filter is under the fuel pump in the 76 300d). However, I am also noticing that the injectors and fuel pumps for the 2 vehicles are different... Does anybody know what issues I might encounter if I tried this 300d block with the 300cd valve head? Is this a terrible idea?
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Is it worth it?

20 February 2008 - 11:01am
Kent Bergsma
I have done this swap before and it was a hassle. There are enough subtle and not so subtle differences that it had better be a real good engine to make it worth while. I would not change the heads - just the manifolds. And I don't like dealing with that older style shakiing power steering pump. You will have to mount the power steering reservoir on the side fender well. Throttle linkage hook up can sometimes be a challenge.