I used to know this stuff, but I am sure the 3.8 in the GNs was not the same engine used in the FWD Buicks of the time. They had a special crank, heads and pistons. There was also odd and even firing orders between the two I seem to remember. The last of the GNs/Turbo Regals was 1987, so if you are looking for a mystery motor, I would start looking pre-1988 as they would still have been called a 3.8L up to that point.
__________________
"Don't look for one place to lose 100 pounds, look for 1600 places to lose an ounce." - Tony DeFeo
|