New 360 & a couple of questions

On a new roller cam engine, the rings need a minute to break in, so they can seat right. Any engine I do with a roller cam, I don’t think so much that I’m breaking in the rings but that’s what’s going on. Moly rings seat super quickly. I never worry about it.

What I do is just run the engine like I’m breaking in a Hyd cam while I let it get up to temp and check for leaks, set timing & I just keep my head poking around at a look for anything, everywhere. Looking for leaks with the oil, P/S, transmission, checking exhaust because I weld like crap. (no patience in getting the practice in.)

I figure after about a ten minute warm up, everything has heat in it and I start the tuning process. Basic timing first, jet the carb, repeat until I’m happy, then test drive.
Pretty much, by this time, your rings have seated.

This takes about 10 minutes total time, more than enough for the rings to seat and temp to come up. I don’t get in and start burn outs with the car right away. I like to normally drive the car around for a few minutes after the break in oil change and see how the basic tune is. Mess with the tune some more, get it 90%or better right on the money, drive it around some more. I stay out of the secondary side. Most of the engines life is on the primary. (Minus the drag car of course)

Once it’s acting fine, I just drive it around for about 400-ish miles to see if something reads it’s ugly head. Change oil again and proceed to secondary side tuning.

Vary your rpm’s as you test drive the car. Let it shift on its own a little, hold a gear and manually shift it a few times. Give it a few WOT runs and let it shift on its own, then a few where you shift it. Let it run up and down the rpm scale a few times.

Im not saying beat the crap out of it, just run up the tach and shift it up around the max rpm and see how it is. Do it at part throttle a few times and proceed to WOT a few times and manually shift it.

Change your oil for the third and last time.
(Break in oil change, around town for the 400-ish miles, change, final new crank case of oil and new filter, enjoy! Come back after all your running is done. I smell the oil. Any gas smell, I change it.)

Your done, enjoy.

This is what I normally do and I have never had a problem with this route.

The old method written about is more centered on the iron rings of old. You can still get these rings if you ask for them specifically. I don’t know for sure but I don’t know who would include old iron rings with new rebuilds pistons. I suppose if your a resto stickler and your doing a 1920-1930 Packard or REO….