It's a 54 motor with #0046902T54Z, and a 3 speed trany, (I'm useing my 4 speed).Havimg help putting it together from a cupple of guys that know what there doing.My master mac. is 79yrs. old and tuff as nails.In a prevest post I was told this was out of a car?? Any hlep is app. .......Thanks , Paul