What's my point?

You said, "Plenty of LA blocks running 600+ and living a long happy life."

I have now counted three. That's not plenty.

My point is it's super easy to SAY you have a 600hp 360. If you had said there are plenty of claimed 600hp 360s, I would have had to agree.

Way back in the days of smallblock Pro Stock the Mopar guys started having trouble with 2-bolt 340s at around 600hp. They reportedly scrapped T/A or AAR cars for the blocks which had provisions for adding four bolt main caps.

Or maybe that's just a myth.

R.