Cadillac 390 oil pump parts

I am getting ready to rebuild the oil pump for a '59 Cadillac 390 I picked up for my hotrod.

Egge offers a rebuild kit for $220.

Caddy Daddy offers a rebuild kit for $99.

Both are 5 piece kits, anyone have any experience with either? Wonder if they are the same kit just rebranded?

 

Maybe my experiences with the '55-'8 Pontiac pump would be of value...
When they went to the larger crank in '59, the pump got somewhat shorter & slightly changed so the new pump will not fit the old block
The good Gnus is that the modern guts fit the old pump. If the bores are OK, a thorough inspection & clean up and parts swap will put you back on the track..
Whoz your Caddy Daddy!

 

I used a melling rebuild kit K58B . Was about $100 I believe.

 

That’s the same part number of Egge. I bet there kit is a rebranded melling with a $120 markup!


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I put a Melling kit in the oil pump for my 390 checking all the clearances as I went. It felt very rough when assembled so I pulled it back apart and stoned all the sharp edges off of the rotors which helped some. It works ok, but pressure is lower than I'd like; if I had to do it over I would build a test stand and check out-put and pressure in operation before installing it.

To my knowledge no one is building new pumps or even the cover plate for them.

 

Yeah, I do not know of anyone selling a new pump. Egge will rebuild a pump if you send it to them but I do not know the price.