Originally Posted by lash
Originally Posted by Archon
BTW - this is the current part number for the LIM gasket...at least as of a month ago.
I don't want to get too far off topic, but I should mention that I bought mine last month under the part number:
89017816 (the original P/N listed)
It does seem to vary by Dealer/Location/something. Or maybe they just have old P/Ns in their system down here.
According to my local GM dealer, both part numbers are active and the newest.
The 89017825 is for 1997 -> up Supercharged engines.
The 89017816 is for 1997 -> up Non-supercharged (K) engines.
They are both metal framed gaskets!
However, 89017400 which is for 1996 (and other) model non-supercharged engines is NOT metal framed. Grrr..
I had all three in my hands. There did not seem to be any difference in the metal framed (97 -> up) gaskets at all. The only difference I could find (other than construction material) between 89017816 and 89017400 is the guide pins on the rubber (bumpers) that seal the IM to the engine block. (These pins are easily cut off, and will be!)
Just to make sure, we checked the PNs for the cylinder heads and Lower Intake Manifolds on both 1996 and 1997. They are the same.
Since those two are the ones that are being joined by the metal framed gaskets and since the "guide pins" for the rubber bumpers can easily be cut off (if needed) there is no reason to think that these are not compatible.
So, I have the newer model 89017816 gasket set, not the 89017400 (1996 version) that I expected to get.
Will report more later.