No Relationship

...other than both are "plankhead" styled engines. It is a much larger and heavier engine series. Even the firing order is different from the FE and MEL. I am not sure of the bore spacing, but my guess is that it is greater. The crank and rods of this engine series were made heavy for low RPM useage in heavy truck. There is even a cavity in the skirt casting to accept an air compressor.

The 430 can be stroked to over 500 CI without even taking into consideration the 462 crank.