Didn't they make the 3.79 so you could use a 360 standard OEM piston and get high compression For a .060 over 360?

Or a .020 over 340 I suppose would work too.

If an OEM 8:1 360 is about .0100 in the hole the math works out to very close to zero deck using the OEM rod.

Or maybe they made it to run a SBC CH piston in the 9.2 deck R block? I'm sure there's a combo that works using an off the shelf slug.

I built a 440" W2 360 (4.25" CRANK) and used an off the shelf SBC chevy 'claimer' Race piston @ ~1.28" CH and the slug was super light, I think my bobweight was right around 1800