err...Sarge, he's talking about an LS2 engine. As in the all aluminum engine found under the hood of most C6 Vettes. LOL.
I doubt any of the LS engine pans are an issue with our truck's generous room back there. But the truck pans definitely fit. And, as far as I know, the pans (truck, vette, f-body, gto) all interchange so long as you use the corresponding pickup tube. Check with Capt on the manifolds. I believe he is using '98 F-body manifolds. But if you are already going to the expense of an LS2 engine, why not invest a little more in some nice S&P headers, which are specifically designed for this application. With headers and a nelson tune you'll have an easy peasy 430+ hp on an otherwise stock motor....and have a silky smooth idle....and get excellent gas mileage (if you can manage to keep your foot out of it). Man, I'm jealous.