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Yea, I saw his engine, cool video too. I have a head and Stud kit on the damaged motor, if I can get them out, ill transfer them to the new motor.
As for the oiling problem, Im thinking of drilling a hole in each valve cover and running a line down to a hole in the front of the oil pan. I kinda like the idea of too much oil :)
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As for the crank issue the wall thickness of the crank is the determining factor as to the desired undersizing of the journal dia.
Olds are known to have minimal wall thickness in these areas.
Also Olds have A very large cylinder bank angle that puts alot of stress on the rotational assembly as far as the inertia of this assembly is causes alot of stress on the crank.
The heads are worth the money by the time you rebuild the heads.
Valves
Springs
retainers
locks
Seats
positive seals
Screw in studs
Guide plates
filling the crossovers
Machining the pads for the plates
turning the guides for the positive seals.
Versus the 1700 bucks for the Ede.
And they are pretty too.