So the more I tear into my rebuilt ( not ) engine the more I scratch my head. Long story short, I bought this '59 235 from a guy in Vegas that said it was rebuilt. The more I get into it, the more it looks like they only did a top end rebuild. Anyway, I have been checking the clearance on all the bearings and the Bearing Cap bolts looked old. Since I had the bottom opened up I figured I would replace them with new ones. Took the old ones down to Ace and matched them up with new Grade 8 bolts. Came into work today and spoke to an old timer and said that the bolts needed to be ARP bolts specifically maid for Bearing Caps. Are the Grade 8 Bolts I bought from Ace not good enough? I thought Grade 8 was the strongest bolt?