Back to the machine shop...

PRH said
I have a customer who builds several open chamber iron headed BB Mopars each year.

They all get quench dome pistons, set up to achieve effective quench.

Why? Because without it they are miserable pinging pains in the ***.

I'm not opposed to using a piston like that. It's near impossible to get much

mhuppertz said
If I bolt it together with a .022" compressed steel shim head gasket I will have .062" between the quench dome and the head, that is more than I want. Again, with my cam I will have an issue controlling detonation at .062" (coming from Big Block experience). I am rethinking which way to go, might be cheaper and easier to take .030" off the heads instead. That way the radius that the open chamber has as it curves to the head deck will be reduced, making the quench block fit in the head with less dead space around it, making it more efficient.
Glad (for the most part) I posted this. I love the exchange of ideas!

LOL. I asked are you doing this for CR or quench? You didn't answer. You are going to fix something with CR and tell everyone quench fixed it.

So...are you doing all this for CR, or for quench? If the former, I'd deck the block. That's how Chrysler designed it to be done.

If it's for quench, you are peeing into a fan. And, you'll be raising the CR.