What year 360's have the "thicker bore"

[moper]

Also, did any of the 360s suffer from the dreaded oversize lifter bores? I have a 340 block sitting here just rusting...............................

Pretty sure at the time of production any engine size could have had oversize lifter bores. I think someone is using Olds or Buick lifters in theres with OS lifter bores. I can't recall exactly but someone's doing something without having to bush or sleeve them all.