oil pressure
 

I had a guy in town re-build a 350 for me it is a 1976. Everything new finally have it back, took it for a ride and after it warmed up when I come to a stop the oil pressure dropped to about 5-10 pounds. Could that be correct?

Thanks

Rocky

Re: oil pressure
 

It could be!
You need 10 psi per 1000 rpm.
Is it a real mechanical pressure gauge or a factory one?
Does it make any strange noises at idle?

Re: oil pressure
 

I'd sure be nervous at anything under 10#. Maybe pull a valve cover and see if you're oiling up top at idle. If not, your guy may have left out the oil galley plug under the rear main bearing. They usually pop them out of the block is media blasted instead of hot tanked. Some guys forget to put them back in.

Re: oil pressure
 

Its not mechanical its electric

I will go talk to them today I was. I wasn't sure if I should drive the truck today.

It doesn't make any noises sound good.

Thanks

Re: oil pressure
 

Does it idle a little rough?
Maybe not related but what’s your timing like?

Re: oil pressure
 

My 85 showed 10-15# at idle. I just converted it to a vortec with roller cam and FI. To be on the safe side, I hooked up my mechanical autometer pressure guage. No surprise, the autometer shows about 15-20 more psi. Ditto with the temp guage. In the process of customizing an extra bezel with autometer guages.

Re: oil pressure
 

check it with a mechanical gauge to confirm the accuracy of your electric gauge. GM oil pressure senders are known for reading low.