I would say it was overkill. Save that money for fuel when you get back behind the wheel.
I have to say you are persistent about the motor . $$$$$ .I would have said piss on it that's it .
Starting over with a LS platformBAN HIM BOB!!!!!!!!
Did you have the big end of the rods checked?
Is there any bevel on the inside edge at the parting line?
Maybe adding some would help, it would help get oil to the sides of the rods.