cast iron water pump /on 5.2 magnum ?

rustytoolss said

I would need to go with the cheapest way. To put the 2176 edelbrock on to the 5.2 magnum... don't have much of a budget. :(

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With factory magnum heads the cheapest way would be to drill and tap the heads for the LA bolt pattern.
There used to be a jig floating around that people shared to correctly drill the heads, but I have not seen it for quite awhile.

A real resourceful guy with a wrecking yard around could make a drilling pattern from LA heads.