actually the FWD 3.8 blocks CAN be put into the RWD car.. same way the */c 3800'* are swapped into V6 F bodies... I'm not exactly sure HOW they do it ... but there is a bellhousing for the 200R4 that accepts the fwd 3.8/3800 block ... probably needs custom made engine mounts... but it can be done and has been done.
it'* kinda funny this was "brought" up as DrJay and I have a small on off discussion going about the orphaned Vin 3 3.8 probably having more potenial then the L67
the actual "BUICK" V6 died in 1989 with the turbo T/A the rest are all Corporate GM 3800 V6'*
it'* kinda funny though that the best heads of the bunch ... are on the orphaned LG3-3 HO