Quote Originally Posted by Quik View Post
actually that was the reasoning that was floating around years ago. they said the AL block wouldnt be teh best for a work truck. since a truck is truely intended to be a work vehicle they went with proven iron block. for heat issues and ridigity
Just a quick check and that seems like they are getting away from that now. Would that be right, meaning gen IV? I still like the thought of having a iron block, the lsx branded are iron (new 454, 427, and 400) to be able to push the 2500 they say they can handle. And thats why they say they used iron, and like you said for heat and rigidity, and its proven.

just to be sure.. I know my block is iron.