Chrysler V6 engines
After losing my 3.8 to a random oil dump, I swapped a good/low mileage 3.3 in it's place.
I did some porting/cleanup, which to my surprise, there isn't much for flaws in the 3.3's heads to clean up. I also added my 58MM tb, spacer, shorty intake, and bigger exhaust.
It runs great and feels...