i have seen this pump used with a melling hv cover. i have no experience with external pick up systems. do i even need one. engine is a 493 that will see regular strip time. max rpm would be around 7000. i have a 21815 pump available to me if i want it. can the melling hd shaft be used or do i need to buy the milodon 21503 shaft.
Is this the pump you are referring to? I have the photo saved as 21814 though, and use a stock, ported cast cover on it to save room. I believe it is available with a side feed -12 fitting. It would work nicely with a stock cover as well.
It's supposed to take less power to drive due to the design change to the gearator. Internal oil pick-up passage enlarged to 1/2" and block passages massaged.