I am rebuilding my motor to stock specs and throwing a CC503/306 in it. I have been looking for a good oil pump to use. I will have the stock oil pan. I am so confused from all the threads I have read. I will need an oil pump, oil pump driveshaft, and a pick up tube/screen correct? Could anyone get me part numbers for what I need? I am lost with this little detail in my motor build. Thanks!

 

SES-3-60-08-037 should do the trick summit

 

No don't want to use that pump cuz it's high volume in a std size pan. It'll suck it dry. Try NAL-12555884. That's a stock GM replacement with high pressure spring, std. volume. You'll have to reuse your pickup and shaft from the old motor, unless you don't have them or they are broke. I don't see any problem with reusing the parts, but others may disagree. Oil pump shafts are cheap. Pickups are about $15.

 

It says its a high pressure which is fine for a stock pan correct? Just not a high volume?

 

i've never had any problem running a high volume in stock pan in my past 3 gen I engines anyone else?
not trying to say your wrong DH but never heard of that happening in a dd

also that was tet wrong kit mybad

 

I've read quite a few stories about that. Had one friend put a 350 in an S10 and he did the HV pump and after a little bit of driving, took the motor back out to put in a standard volume. Said his oil pressure was dropping like crazy when he got on it. It might be a hit and miss thing but I wouldn't chance it. I have a high volume but I also have a bigger pan. I am running stock pan on my LS1 motor so I chose standard volume, high pressure.

 

Yeah. You can get them with std spring or high pressure, either or.

 

Melling M155..that is what I had in my LT1. It's a Standard Volume, High Pressure. I got the same thing now in my LSX, Melling High Pressure, Standard Volume.

 

That's what I got for my LS1. Have they got the casting issue sorted out with the Melling SBC pumps? That's why I recommended the General.

 

I never saw the M155 on that list.

 

I can't remember specifically but I remember seeing the xx55 whatever pumps as being at fault. I thought it was pretty much all of them.

 

Run the stock pump or replace it with a new stock pump. You motor will do fine and you will not be giving up HP like you will be with a high pressure pump.

Daren

 

^^Explain to me how you are goin to be giving up HP with a High-Pressure Pump..

 

It increases the load on the motor. That high pressure is not created by magic.

 

The High-Pressure aspect is created by the shape of the outlet hole on the Pump, and the internal design of the Pump. You might loose like a Pony out of all that, there is not much rotating mass, and not alot of resistance.

If I am wrong..someone chime in, but it's not like a Water Pump, an Oil Pump is puny, and how it's driven off of the Cam even helps it. Mine sits on the front of the Crank.

 

You actually will lose a lot more than "a pony" and it will not make a well built N/A motor live any longer. There are some substantial gains to be had in oil pressure, viscocity, and windage. You would be surprised.

 

I would rather have High Pressure than no pressure. I understand the Vescosity aspect..I can run 5W a little easier with a High Pressure setup as the Engine breaks in.

 

i have the m155 but be careful there are lots of threads going around with mellings stuff breaking and being thinner castings than the old stuff, just to save money..do a lil reading around first

 

I had this same delima a few weeks ago...here's what I ended up going with:
Melling Select 10554 pump (std vol/std pressure)
Getting the GM white spring 3848911 to put in it for higher pressure
And then getting a new GM pickup tube, 12550042.

Be sure to tack weld the tube onto the pump so it doesn't fall off, and make sure its installed to pickup at the very bottom of the pan.

The Melling non-Select pumps are the ones having breakage problems because the casting is much thinner, so make sure you get the "Select" pump...here's pic of the comparison:

 

Pretty easy to tell that the pump on the left is the thin one.