[ng8264723]

He is talking about main bearing walking and inturn block splitting. The 427 SO's and TO'S have the same damn holes from the cam to the mains. The side oiler has an addn feed to the main from the side. They otherwise have the same oiling. You really have to read (excaliber) before you post. Nevermind the search function. Read Steve Christ's book and learn about the engine. Don't take someone else's word for it. In this case people misunderstood what KC meant anyway. He said a 2 bolt block doesn;t crack when studs are added. A 427 is a 4 bolt block