[MyFlat6]

Thanks,Neal. Yes, the heads and case measure out after Ollie’s spent a considerable amount of machine work. They supplied me with 1mm base shims for the cylinders to get it back to spec. I hope the cylinders measure out when I get them. LN is supposed to be of good quality. If they don’t, it would seem the best course of action would be to have LN make corrections? Same with the P/V clearance if there are issues, isn’t the answer to machine the valve cutouts on the pistons? Sorry for the amateur motor building questions but I guess what I am saying is that even if the heads and towers are all assembled, I am not sure how it would change the best solutions to issues encountered with P/C’s?