Roller Block Cams?

Max1196 said

The snout of the cams will be different (where the cam gear and fuel pump eccentric would go). The length of the retrofit cam will allow for the use of a fuel pump eccentric where as the EFI cam snout will be shorter and no provisions to have a fuel pump drive, without an adaptor.

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Well that will work out for my favor at least. The block came out of a 1981 D300.
A little history on this block. Obviously not the original motor in the 81 d300. The motor $hit the bed a few months after I bought it. So I pulled it like I mentioned 20 years ago and had the block and heads magnufluxed. Turns out the heads were cracked terribly. Someone had put a set of magnum heads onto it without using oil through pushrods. Not sure if that's what caused the heads destruction, But regardless I kept the block and crank for all these years. It was running on propane too, so it'll be going back to a carb with some 1974 360 heads. The long snout works for me at least.