Quote:
Originally Posted by petehoovie
This, from Ron Bishop's book "Rebuilding The Famous Ford Flathead" - Page 51 - "Ford used 40 non-detergent oil (Summer) in all of the flathead motors. The flathead oil system ran between 10-15 pounds of pressure, but is not considered a pressurized system by today's standards."
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I find this to be an amazing statement and quite hard to take seriously. I think I have Bishop's book (I bought every flathead book I could ever find) and have not looked at it in years. I guess this helps explain why.
My rebuilt 258" engine with a stock Ford pump runs 55 psi at anything over 2000 RPM. My 1967 L79 Corvette 327 runs at it's factory specification as well. That specification is 45 psi.