Got my Dart order in and had a chance to look over the Pro Block and so far have been pleased with what I saw and the mains were right in the middle, cam tunnel was right at 2.120 and the lifter bores were on the low side and depending whose lifters you are running they may have to be sized. To those who have asked about the studs on the outter splayed holes they are indeed 7/16 studs. Sonic test was very good!!
NOTE we have been seeing a lot of under size roller lifters lately and anyone who is building an engine should measure all the lifters and size the lifter bores accordingly.
Any one needing a specific picture of this block let me know!!