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Stock bore, just the gpi drop ins. No balancing. No head work.
The head work part bothers me a little being that I dropped an exhaust valve on the 6.2. I looked into getting them done and every route seemed to add up to a lot of money. I am pretty sure the 5.3 does not have hollow stem exhaust valves. That seems like it should help.
Does anyone know if the 5.3’s in stock trucks have a history of dropping valves? I have heard it isn’t uncommon in the newer trucks but was thinking that was for the 6.2 motor.
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