Re using cast iron rings?

replicaracer43 said

My experience has been that if you check, say, 10 random 360 blocks, you might normally find 2 that show some level of distortion with the plate bolted on. How much is another discussion. Now, certain blocks from other manufacturers can be more or less sensitive too it also. But as a guy that gets paid to use them, I typically only do it if the customer requests it. Take that for what its worth.

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Back many many years ago during my big block years I was one of three that went together and bought a torque plate. I ran my blocks for years back then so the only block I ever had done with it was on the 440 I built for my Dads motorhome. The one other party was a ford guy but he owned the machine shop that did our machine work. My other buddy still races big blocks in Stock Class. I think I know who ended up with the plate but that’s old history. I was told my R3 block had one on it when it was bored before I owned it. When and if I ever get my Molnar rods it will be getting brush honed by me.