high voume vs. factory spec oil pump

is there any value in installing a high volume or high psi oil pump over a factory spec oil pump? this is in a relatively stock 360c.i.

there is NONE, look up www.mellingoil.com and read their article about what high volume pumps and standard volume pumps really are- good read.

NONE?? I don't read that anywhere.
http://data.melling.com/Tech%20pdfs/HIGHVOLUMEPUMPS.pdf

It doesn't say that its a bad idea or a good idea. IMO i would say READ the article they wrote and make your own decision.

I always have used HV (normal pressure ) oil pumps in the 2.0 and always had pristine bearings at the rebuilds of 100000 miles. (The last rebuild was a bent crank that wiped out the center main bearing).
That said, I have a HV normal pressure in the 5.0 currently in the car. Ill always swear by them.
This is always a hotly debated topic here every time it comes up. Ford Muscle had an issue with the 400HP 302 that they built. They used a standard pressure/volume during the build because of all the Hype against the HV pumps. They ended up with a HV anyways because the oil press was down from where it should be on a new build. It was where they wanted it later after the switch.
http://www.fordmuscle.com/archives/2...dex.shtml#mill

Good enough proof for me on which ive always believed in.
However I'm sure theres plenty of people that hate HV oil pumps for their own reasons. You might hear from them as well.
IMO its insurance in a stock engine.
Good luck and happy new year!

True, it could be that a mostly stock 360 is turning the rpm's where a h/v pump is needed, my mistake-

HV pumps are generally needed where the bearing clearances are on the large side. Even a stock pump increases output with rpm, so just the fact that you may turn a higher rpm is not justification for a HV pump. Found out the hard way one time that you should run a HV pan with a HV pump. At high rpm the pump would all but empty the pan and start sucking air, most of the oil was in the top of the engine.

once again the myth is told. You will NOT suck the pan dry with a high volume oil pump!!!!!! If you are running the pan dry you have drain back issues!
I have ran HV oil pumps in all my rebuilds with stock pans, never one time did this happen. Even with hobby stock race car engines where the rules state you have to run a stock pan.

FLOW not pressure. That's what's important. Never heard of anyone sucking a pan dry with a HV pump.

I run a HV pump, with a stock pan, windage tray and crank scraper, on my 306. I also run an ARP pump driveshaft as this is a notorious weak link in a SBF at high RPM's anyway, HV or not.

I have 50 psi cold, 40 psi hot at idle.

I broke the engine in with 15W40 diesel oil, and will be switching to a 0W30 synthetic real soon. That should help with any drainback issues (if there even is one) as well.

My 0.02

Originally Posted by bmcd66250

HV pumps are generally needed where the bearing clearances are on the large side. Even a stock pump increases output with rpm, so just the fact that you may turn a higher rpm is not justification for a HV pump. Found out the hard way one time that you should run a HV pan with a HV pump. At high rpm the pump would all but empty the pan and start sucking air, most of the oil was in the top of the engine.

I had that happen too on a 302 with a HV pump. In fact I walked home twice because the motor would loose oil pressure above about 4500 rpm.

Bruce

Originally Posted by mustang42782

once again the myth is told. You will NOT suck the pan dry with a high volume oil pump!!!!!! If you are running the pan dry you have drain back issues!
I have ran HV oil pumps in all my rebuilds with stock pans, never one time did this happen. Even with hobby stock race car engines where the rules state you have to run a stock pan.

Not a myth, as I said it happened to me. There were no drainback issues, block was very clean, oil return holes chamfered, Glyptal on the lifter valley and timing chain area. Just because you never had a problem doesn't mean no one else could have a problem with their setup.

The pump is not your problem - you need a windage tray. The oil clings to the rotating crank. The faster it turns the more oil clings to it. When you put a windage tray on it you scrape that oil off the crank and put it back in the pan where you need it. A high volume engine doesn't push any more oil into your engine than a stock punp will because the pressure will only push a given amount of oil through the clearances of your engine. The extra capacity is dumped into the pan through the relief valve on the pump. It does ensure that there is always enough oil to lubricate that last rod bearing in the oiling circuit. It also maintains pressure as clearances grow. If you plan on running your engine for 150000 to 200000 miles it is good insurance. I too have always run high volume pumps with no problems - even to 6000 rpms.