5.9, max safe compression?

gregsdart said

My head is spinning on this one, and maybe It would be smart to go with a piston combo that would allow me to "fix" a too high compression situation. The point made about lowering CR with gasket changes would be easier with the Sealed Power pistons and their 11.23cc dish. The trouble is the Sealed Power pistons would require two extra steps, decking the block and balancing the rotating assembly. That adds another $300 to a project that was supposed to be a low budget build. I need to win the lottery or something. Too many projects.

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Or:
1) Put in a bigger cam as AJ sez.
2) Retard the cam some.. I am too tired to play with the numbers tonight.
3) Do what I did back in '75 to bring some 11.2 SCR quench-dome pistons down to 10.3 SCR for using premium fuel on iron heads: grind out the head chambers as many CC's needed to get it there. (I had to do it on the side where the quench domes were not forming the quench gap. Boy, was I nervous about the water jacket! It was my first big engine project.) I have not set down on this project to see how many CC's to take out in this case. But it can come from heads, pistons eyebrows, or valves with big dimples in them. Head grinding yourself is cheap in terms of $$.... if you don't hit water.

(Dang I am so tired I am correcting your spelling LOL!)