i will need to change this sometime soon,just starting to ping slightly. its not that bad yet.
all the DODGE TSB's say 94-up,what about 92,93 magnum engines??
did they forget these early engines or what?? thank you

 

i am pretty sure every magnum engine has a plenum plate on the bottom of the intake manifold. there is an easy way to tell. just stick one of those extending magnet things down your throttle body or you might be able to see the oil with a flash light. there is a guy on eBay that sells the aluminum plenum pan fairly cheap and then you would just have to pick up your favorite brand of gaskets at your local parts store.
here is the plenum pan on ebay
http://www.ebay.ca/itm/DODGE-JEEP-AL...#ht_680wt_1270

 

thanks for the info,i have been doing some checking on this issue.
was also thinking on doing the kegger mod to it.
does anyone know if doing the kegger mod will the low end torque suffer?? my engine seems to have lots of low end torque,i just dont want to loose it by doing the mod. it still runs strong as new,just has a little ping to it when it kicks into overdrive under light throttle. the idle in gear is a little jumpy(not all the time) i can tell,especially looking at the battery gauge. it has a small amount of flutter(back and forth) that co-insides with the idle. this was not always like this,just a recent thing. thank you

 

well i did the vacuum test to check for blown plenum gasket,it checked out good. there is a slight amount or coat of oil in there but not pooling.
so i will wait a while on changing it until i get another intake and mod it.
maybe on the long thanksgiving weekend.

 

i don't know if the kegger mod would make a difference. i think the plenum might be able to weight till thanksgiving. at least you are aware of it before it has a chance to do any real damage.