Hello fellows. My first post on cc.com. Let me start off by introducing myself. I am Seth and I am recovering.... wait wrong group. Just picked up a nice MJ this past week. I own a diesel liberty and I love it. So my plan is to swap in a 6.2 or a olds 4.3. My question is about weight. Since the 6.2 weighs between 700 to 800 has anyone had any real world experience with this much weight. Such as a big block or a different engine. Second the 4.3 olds comes in at just over 600. So its close to a small block by all accounts. Would the frame needed to be stiffened?
