Ran it in park for 20 min then changed the oil. After 50 or so miles, the intake started leaking, so I changed it again. The rubber seal then started leaking oil out the back. The coolant got mixed with the oil, so I changed it out again at 100mi. Im leaving off the rubber gasket and Im just going to seal it up with the sealer. I will then change the oil again between 500-1k miles.
I've ran a shit load of oil through this motor for break-in, especially with it being a 7qt pan.
Yea, running a thick bead of sealant(RTV) on the ends, in place of the rubber gaskets is the best thing to do. It's also good to bring the rpm's up during the first few drives to help build cylinder pressure. This helps put pressure on the rings making them seat better against the cylinder walls.
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