High Hump or Low Hump
 

I have a 68 with a Low Hump and already installed a 700R4 trans and am going to be installing a Big Block. I am doing the engine swap as close to original as possible. Did all Big Block trucks come with a High Hump?

Re: High Hump or Low Hump
 

yes, I would say high hump on the BB engine.....It sits between the I-6 & sb position, & is also mounted a little higher in the frame. This is due to the BB mounts /stands. You can mount the BB on sb stands......but, you will never get the headers/manifolds to fit that app. :chevy: Longhorn

Re: High Hump or Low Hump
 

I think the majority of them had high humps, but I've got a 68 with a big block and a T400 with a small hump. When I first got the truck it was pretty close to rubbing on the top of the trans, but after new body mounts it clears just fine. I can get my hand around the top of it

Re: High Hump or Low Hump
 

Good point. My 68's cab bottom line was lower than the bed and after ordering new ones and comparing to the old ones I noticed there was over an inch of difference.

Also, you could possibly add shims to lift higher. That would be better than cutting up the truck.

Re: High Hump or Low Hump
 

I've seen factory shims, square in design. I think they used them to get the body lines to line up when needed.