Diesel 4.3L V6 swap in Fiero? (Page 2/2) Will SEP 29, 08:46 AM The longitudinal automatic (TH325L) is much more difficult to install in a Fiero than a transverse automatic (440T4). However, to use the transverse transmission, you'll need either an engine with the transverse bellhousing pattern or an adapter plate. olejoedad SEP 30, 08:50 AM Seems like a lot of work and expense for very little (if any) gain. cam-a-lot OCT 02, 09:46 AM quote Originally posted by olejoedad: Seems like a lot of work and expense for very little (if any) gain. Agreed Your labour/time has value. Swap parts have value. Thousands of dollars combined for parts and labour for really no gain..other than the "oddball" factor donuteater306 OCT 02, 12:54 PM I'd woulda loved to have that Cutlass with the diesel still in it. Huge G-body fan and I love the chug-a-lug-a sound of those slugs! Best of luck with the swap. Keep us posted please. Z Fiero JUN 24, 11:08 PM Here updates: I have decided to try swap 4.3L diesel with 1st gen Astro/Safari AWD van since Its hard to find any less than $500 for nice Fiero car at my area. I did brought 1994 GMC Safari XL with nice optional digital cluster, AC/Heater rear and whole van was just $500. Not rusty and about 160k miles on it.