so i'm wondering if the truck intake manifold would fit in my car if i cut the cowl. i already have the wipers out and a cowl hood, so both of those are not issues, and i've been reading that the truck manifolds flow better than any LS intakes. anyone know if it's just not possible at all or if i could if i shaved the top of the intake (remove the mounts for the cover and anything else that sticks up higher than needed) and cut the cowl to fit.
the car is pretty cut up already. the cowl isn't really doing anything so really it's just weight on the car at this point. if it flows better, and i don't have to spend $300 on a new intake then it makes more sense to just trim a few inches IMO. i'd have to trim it eventually to put a cool intake on it someday anyway. As long as i don't have to notch the windshield i'm fine with it.
is the truck intake taller than a carb'd LS? because people trim the cowls to make those fir pretty easily.
I see what your saying. Damn, I knew there was a reason I couldn't find it done anyplace.
Yeah, the 4th Gen's cowl is why gm went to opti off the cam, no room to service a regular SBC dizzy. The truck intake is a lot taller. I am going to run a truck intake on my Caprice for the same reasons you want to (slightly better flow, cheaper/already have it) so I know how you feel. For a 5.3 though, a regular ls1 intake can be used no problem, and are relatively cheap. Ls2s can be had for decent cash, I got mine minus throttle body but with rails and injectors for $200 shipped.
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I bet you slow your car down by more then a 1/2 second going back to e.f.i........what don`t you like about your Prosystems carb ??