Is this true

Real quick like. Long as it has at least .175" on the thrust side, real quick. Most of these we've tested will have more than that AFTER going .100 over. But I'm not saying all of them are like that......but we have yet to find an early one that's as thin as the later ones. Call Hensley. They'll talk to you about it.

Good to know, Thanks SS. I'm not thinking about going that far, but if i find a early block that's .040 or so at least i know there's still some life left in it.