Re: 1939 super 8 oil pressure

Posted by Dave Kenney On 2009/6/1 12:05:25

My 1935-53 Vintage Car Motor manual shows a 1939 Super Eight with the 320" engine at 60 p.s.i. @ 30 mph. The 1940 Super Eight 356" engine shows 50 p.s.i. @ 30mph. When oil is hot my '47 runs at about 40 p.s.i. at anything much above idle and about 15 @ idle using a high quality mechanical gauge at the valve lifter oil gallery port. The dash gauge is a bit more optimistic. I wouldn't be worried if you are getting 40 p.s.i. while running above idle.