yes, and i did a very short stint at a chevy/buick dealer, (as an assistant service manager) and we were getting those converted POS's nearly every week, with gigantic holes thru the hoods, some came in, missing hoods...broken windshields, messed up dashboards, firewalls.....
cost GM lots of money to put gas engines in them, or buy back the junk cars.
they just planed down the heads (pretty much) and did not take into consideration that the head bolt pattern would actually handle all that compression.
dumbass's at GM, should have never done that.