I watched a 406 chevy SB, assembled, dropped into the car, and raced all in the same day. They wanted a fast break in on the rings. Rubbing alcohol was used to wipe down the cylinders and also used as a lube to slide the pistons in. Of course it all evaporates in minutes, leaving a dry cylinder, piston, and rings. The engine was fired and held at 5000 rpm for a few minutes. Then it was tuned, and as said raced that night. That engine ran 3 seasons before it was pulled down. No problems.
Me, I like a little light
oil. I would prefer Blykin’s WD-40 to the alcohol, but I think they are getting to the same thing – a quick ring break in. From what I have seen it all works. It seems a question of how big a hurry you are in to get the rings seated verses how much risk are you willing to take.
PS
I have heard it claimed that too much
oil can cause the top ring to carbon up and stick on start up