Could someone please help me with a little bit of info on the v-6 3800? What I would like to know is what makes and model cars has GM put the motors in and what years aswell.
And I have one more Question ande that is Is it possible to take the catalytic converter off and put something like Sea Foam in it for a while and then rinse it clean with something to make it work well enough to pass smog again? Mine is only 2 years old but i drove my bonniville for a couple of mounths with a miss and that fouled up my cat. Any info would be very appriciated
Thank you

Well.... there'* the 3800, the 3800 Series I, the 3800 Series II, and the 3800 Series III.

Some of these also come supercharged.

Is there a specific model you're looking for?
This Wikipedia article should tell you what cars they all went in:

http://en.wikipedia.org/wiki/Buick_V6_engine#3800_V6