Garys1969RR
Well-Known Member
Building a 512, and not sure how thick the cyl walls are on the 400 block. Don't have a sonic tester, and the Block Shop doesn't either. So what to do? Never tested 1 before, and never had a problem. What is the minimum thickness you want on the major thrust area of the cyl wall? How much for a basic tester, and where do you get them? It will be .035 Over on the bore, so I'm taking .017" off each side of the cyl wall. That's not much.