No he just cut the original seats as you can tell he didnt cut much. I think the heads where originally around 1.62 and the variances I'm seeing is the seats that was in bad shape and he had to cut more in those seats! I measured these heads before I ever took them to the machinist and iqad getting a really short height. And everyone in here told be it was because I measured them wrong and I wasn't using the correct tool so. I bought the correct tool and they are still to short! Haha. I think these heads are just made that way. Somewhere deep in my notes I have the original measurements I took with a snap gauge and calipers. Iirc I'm pretty sure it 1.62
