5.0, 302 oil pressure?

[Rowdy Fitzgerald]

What's everybody's motor getting for oil pressure?

 

[Tominator]

Around 15#s at idle about 50#s in the upper RPM range.....That's all a SBF needs.

 

[Rowdy Fitzgerald]

Umm I think I might have a problem then. My motor is idling at 51- 53 psi!

 

[85_Ranger4x4]

Umm I think I might have a problem then. My motor is idling at 51- 53 psi!

Cold or warm?

Mine ran about that when it first started and it would eventually go do to about 20 as it warmed up.

 

[Rowdy Fitzgerald]

Cool. I havnt ran it long enough to get it to temp cuz I havnt put the exhaust on yet. I'm afraid it will get too hot and damage the valves. I'm probably being overly cautious but I'd rather not screw it up

 

[85_Ranger4x4]

I wouldn't worry too much about it until you get an exhaust on it so you can run it longer.

 

[Rowdy Fitzgerald]

Ok and I noticed when I have the pcv hooked up on the original block that the oil pressure would drop 5lbs. I havnt hooked it up on this block yet. Maybe that's part of the reason it's reading so high?

 

[gsp]

18-20 at 180,,, 50+ cold,,, I vent crankcase behind air filter and with external filter to atmosphere.

 

[85_Ranger4x4]

Aside from messing with idle speed I don't know what the PVC would have to do with oil pressure.

I just have a regular pcv valve going into the carburetor.

 

[Rowdy Fitzgerald]

I just have a regular pcv valve going into the carburetor.

That's all I had too but if I pulled the pcv out of the valve cover my oil pressure would noticeably jump up. Maybe somethin wasn't right with my oil pump?

 

[Rowdy Fitzgerald]

Ok so I drove it some last week and when it's cold I'll have 51-53 psi and then once it warms up I have around 45 psi. Does any body know if a high pressure oil pump was built for a 5.0/302? The truck my block came out of was built for desert racing so I'm thinking maybe it was done to help reduce heat and friction while racing. That's just a theory though.

 

[v-8power]

Yes they make a high volume pump for a 302, i dont think they are needed like in a chevy though.

 

[dangerranger83]

Speaking on the line of oil pressure, anybody how to hook or know of adaptors to hook in a canister type pressure unit? I pan on running aftermarket autometer guages. I have a fitting that I got off my old 2.8 for its oil pressure setup but not sure if it will screw right in place of the factory setup on a 302, the one right near the water pump on the driverside of the block.

 

[85_Ranger4x4]

Speaking on the line of oil pressure, anybody how to hook or know of adaptors to hook in a canister type pressure unit? I pan on running aftermarket autometer guages. I have a fitting that I got off my old 2.8 for its oil pressure setup but not sure if it will screw right in place of the factory setup on a 302, the one right near the water pump on the driverside of the block.

Yeah, for the canister style sender you have to use an extension. I used my 2.8 extension since my 302 originally just had an idiot light switch, it worked great.

Kinda odd, it has to be about the only standard threaded part on the V6...

 

[dangerranger83]

So the extension off the 2.8 will fit in place of the idiot light senor on the 302, remember, you and me have the same blocks out of the same type of cars, or at least HAD the same type of engines at one time.

The canister given to me has fine threads and the 2.8 extension has coarse threads for where the canister or oil line fitting go into it. I wonder if the original canister off the 2.8 is the same as the fine thread one and the only difference is the thread size.

May look into getting that hooked up soon, or at least get my manual pressure guage hooked back up for now and worry about the nice guages later.