416" on the dyno

rmchrgr said

That's the one thing I didn't measure but I'm thinking they are more like 68cc? The pistons I have are flat top with a -5.6cc dish and are true zero deck with a .0039" head gasket. Rod asked me what the cylinder pressure is but we didn't check that on the dyno. I'll do it when it's in the car but I'm betting it's 200 psi. or more.

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I had mine cut to 61cc but not sure how they came, that was enough to raise it to 12.3 ish compression. Just had Rod have them skinned before I got them. I want the extra squeeze and like running 110. I want to say they are around 68cc, but won’t swear to that.
I have zero deck flat tops ( icons) with the dinosaur ring packs.
My cylinder pressure is currently 180-185, I should have put new rings in it when I had it apart, but didn’t.