77 buick regal landau

[cbrewer]

what size motor and trannie did they have in it?

 

[MeanBuicks]

Check your VIN:

8 Cylinder Engines
8 Cylinders 350 L 5.7L 4BL
8 Cylinders 350 H 5.7L 2BL
8 Cylinders 350 R 5.7L 4BL
8 Cylinders 305 U 5.0L 2BL
8 Cylinders 350 J 5.7L 4BL
6 Cylinder Engines
6 Cylinders 231 C 3.8L 2BL

Transmission in all cases was probably a TH350.