I knew the .060” over was gonna get people excited! I agree that the thicker the bore the better but the machinist that did the boring is a lifelong seriousMopar guy. Serious like he owns 2 mint Superbirds with sequential vin numbers. He has built more Mopar engines than I could even imagine. He said this block looked great and could handle the.060 over easily. Did he sonic test it? No. Do I trust his word as an expert? Yep. So I’m gonna run it and when it splits a cylinder I’ll take back to him for a sleeve.