The Stovebolt Site Forums The Shop Area Engine Shop oil pressure on a 216

I have restored a 1949 chev. 1-ton truck with a stock 216. The things iv'e changed are .20 bore with aluminum pistons. I rebuilt the oil pump, and new bearings in the engine. I have 30w oil in it, When it's cold I have 30 lbs. pressure at about 1500 rpm I took it out for it's maiden run today And when I'm driving at normal speeds It is only showing about 5 to 10 lbs. of pressure. Is this normal? Thanks Guys.

Hello!

From my experience that sounds about right. My 216 has about 20 to 25 psi when cold, and the holds about 10 psi and I've been driving it for 20 years. My engine is internally stock.

Randy B.

14 psi at 2,000 rpm would be normal
http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm0648.htm

5-10 psi at cruising speed when warmed-up is a little low, but I have run many miles at those pressures.

What weight of oil are you using?

I am using 30W and the outside temp is 90 degrees. Terry

You might try running 40w and see if the pressure goes up a little.

Mike B

I've seen 216's idle with the needle barely off of the engine off position.