[MARTINSR]

I still don't think you need a boxed frame. I don't know, I ran a mid engine Buick 401 and would get zero wheel spin at the drags kicking the big boys in 60 ft time and I certainly never needed it. That frame is pretty stout. Just because you have a beefy motor doesn't mean you will be transfering all that power to the ground. And not only that but how often? Will it really make a difference in the "use" of that truck?

I am asking you these questions because I don't have every answer, I just have the questions for you to answer for your truck.

It's not a Model A or a 32 Ford, it's got "K" members in it already, it's a pretty tough frame.

I have seen blown big blocks in them I don't know, unless you plan on being at the drags every week on slicks, I just don't see a need. Spend some time studying the need before you get into this, that is a BIG project and it can cause you more trouble than you can imagine. I have fixed bent frames and rear ends and stuff that were warped from welding. There is a LOT of heat welding something like that. I have seen frames that needed a bunch of work after cross members were welded in.

Just putting out some red flags, do your homework.

Brian