Failled Upper? Sound off:
 

Okay, I was wondering if those of you with failed uppers can quickly let me know if it was a rochester or delphi unit, and the year of your car...

matt

Mine just failed last month (assuming for the second time since it was marked 2001). This time I got the newly redesigned (not series 3, tho) Upper and Lower intakes. Cost me a penny or two extra for the work.

My upper was a Delphi, but it hadn't failed. I bought a new intake (thinking that my old one was melted as I was doing the project as preventative maintenance). When I unbolted it, to my surprise, it looked like new. Regardless, I still bolted on the new on that I bought. It, too, is a Delphi.

The lower gaskets on the other hand.... :shock: :roll:

delphi
 

My original was a rochester and had signs of burning but no failure.
Installed a Delphi.

i also have a rochester that hasn't failed. my lowers were shot though.

Ditto. Turned out all I needed was a TB gasket.

uh, right.

anyway, on topic...

The LS7 has a composite manifold as well. It's lighter, easier to build complex tunels with, and cheaper. The only reason they fail in L36's is because of the EGR stove-pipe touching them. An L27 composite intake flows better then the original 3800 one as well. :wink:

bingo.

composite intakes are great (they're used on the ls1, 2, 4, and 6, btw), and they're usually nothing but benefits. but someone goofed up a little with their thermodynamics, and we're paying the price for it. so it goes.

get with the program since your a northstar