I recently got my malibu back , when it left it had a 6cyl in it with auto trans . for the life of me i cant remember if it was the 3.3 or the 3.8 . if it helps it now has a 355 small block mounted up to it . Not sure if both work on sb's . Either way which transmission is a direct swap so i can get rid of this small one . it seems to be holding this motor back badly . I dont want to have to have the driveshaft cut . any help is great ... thanks guys