fits perfectly actually.
list of swaps i can find quickly online:
LS1/LS6
caddy northstart
l36 (n/a 3.8 )
l67 (supercharged 3.8 )
turbo 3.8 from GN
complete porsche 911 drive train :twisted:
small block chevy
big block chevy (there is one guy who put in a 530" motor :shock: )
small block ford
460 ford FE motor
426 hemi (yes a real one)
ecotec (some with turbos)
3.1/3100/3.4/3.4 overhead cam V6's

seems liek with a little massagine damn near anythign will fit into the back of a fiero. very few of the articles i have read talked about any major drive line failures, but i think taht is mostly because the tires will spin before anything can get hurt. they do not have much room for tread under there.

later
tim

heheh you tried to say 3.8 and it gave you a smiley instead.