Edelbrock heads on a 340 with KB243 pistons

72bluNblu said
.027" over the deck? I would seriously consider switching pistons with that build. Get something close to zero deck and run the closed chamber heads. You've already got the heads, the quench would work out much better, and the swapping the pistons at this point would be cheaper/easier than reworking the heads. The fat head gaskets aren't the way I would want to go unless those compression numbers are really what you want.

I'm not following this.... maybe it's being missed that he already has the closed chamber heads. The CR is being limited by the chamber volumes and piston to head clearance, not by the positional relationship of the pistons to the deck. Just moving the piston tops down and thinning the gasket is not changing anything, right?