Precision Oil Pumps

66P51GT

New Member
Nov 7, 2003
721
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Cerritos, CA
I've had several events in the past that have persuaded me to never overlook the importance of a solid oil pump. After my first brand new oil pump failed, I purchased a blueprinted one with saftey wires from Ford Power Parts back in the 80s. They don't make them anymore but I did find a company that performs the same high-tolerance blueprinting.

Precision Oil Pumps
Precision Oil Pumps
11735 Haven Rd
Madera, CA 93638-8737
Phone: (559) 645-1951
E-mail: [email protected]

You will spend a little more but I can attest it is worth every penny. Case in point. The last factory rebuilt and installed 289 I disassembled had one of the oil pump bolts that seals the bottom plate sitting in the bottom of the oil pan. This explained the low oil pressure I was experiencing.

I purchased a racing 302 version that uses a cast iron 460 plate on the bottom for added strength. IIRC it cost $89 and flows more than the standard Melling but less than the HV version. I also picked up an ARP bolt kit for the pump and pickup along with billet steel oil pump drive shaft.

302%20Ford%20Race%20Pump.jpg
 
1320stang said:
Doug at Precision is a good guy. :nice:
I totally agree. We discussed my engine build and oil system (basically a 7 quart T-Pan with max of 6,500 RPM and standard bearing clearances) and he recommended the 302 Race pump. He kept me from buying more than what I need and recommended the best for my situation. I got a lot of knowledge transfer from a relatively short conversation.
 
Even more important, use a new clean pickup and screen with every rebuild. I used my old screen after what I though was a thorough cleaning and locked mu melling up after 200 miles.

Ford pumps have very tight clearances, .0015 of an inch. The factory screens have a big hole in them for a bypass. That is a recipe for disaster. Not only will you pump lock up, but it will take your cam and dist. gears with it.