What is the practical differences between 63.305 and 63.995 combustion chambers?

On the 1.94/1.50 heads would it make sense to increase cc to 63.995 from 63.305?

Thanks,

Bluesdog

Please go over to the Ross R
acing Pistons site and use their CR. calculator.

I put in -4 to -6 cc's, (usually just -5), for 4-notch, flat-top pistons, .025" down in the hole, .020" for cheap, Mr. Gasket steel shim headgaskets, head chamber cc and the rest of the stuff.

Do it for both cc's and see.

Shouldn't be all that much??

pdq67