I First I'd get the engine number off the guys engine and check to see if it was original to his truck or something else. By a SLIM chance maybe his engine got swapped out some time ago and is one of the 53 235's with rod bearings??
Long shot but worth the small amount of time to find out.....but if its "cheap" then just pull the pan like HRL suggest.


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile