Plastic 3.8 upper plenum

[6banger]

I know this isn`t turbo related...just looking for help. My daily driver `95 Park Ave has a warped upper plenum, I understand it`s rare to have a 3.8 car that hasn`t had issues with this. This is the series II engine, and supposedly the Series III went back to aluminum. My question can you swap the upper plenums? And if so is there a particular year/model of car I should look for (boneyard) to find one?

Any help is appreciated, don`t know where else to look for answers. :redface:

Thanks,
Jim

 

[gs462]

Actually I believe the replacment plastic upper has had the original problem corrected, you should be fine with a name brand replacment. Try napa or something similar.

 

[MikeStarner]

the new dorman brand plenums are stocked at almost all advance auto parts and are redesigned, the problem has been corrected on their intakes, or so their reps say.