Quote:
Originally Posted by petehoovie
This, from Ron Bishop's book "Rebuilding The Famous Ford Flathead" - Page 51 - [B]"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."- This, for factory stock engines back in the day....
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I don't believe any of that for a minute. Did you know that the factory specification for oil pressure for an 8BA was 57psi at speed. Even the early engines ran a lot more than 10-15 psi unless they were all worn out. Also, non-pressurized engines have "dippers" on the rods; never seen any on any flathead Ford V8's. Model "A"s and stovebolt Chevy's yeah, but not Ford V8's.
Burn all copies of Bishop's book if that kind of crap is in it.