I just so happen to have one laying around in my future projects pile. It measures less then 10" from the surface that mounts against the block, to the highest point of the intake. I think it will clear, since the people put in the TPI setups and they're a lot wider at the top.
Not to steal the thread, but has anybody put the LSX series motors in their vans and where did the get the parts? With gas being so high and the 4.3 not being an econo motor, I'm considering it to save gas. Who would thing you'd V8 something to get better milage?