It "can work" since later engines have a larger register hole than the torque converter snout of early 904's. But, I don't recall exactly when that changed. I recall between 1967 and 68 model years, and perhaps that year varied between slant-six and small-blocks. Since your transmission is on the borderline, best to verify once you get things apart (everyone should). If your transmission does have the smaller snout (unlikely), you can slide an adapter ring over it to match your engine. Charrlie_S here sold one to me, so see if he still stocks them or can make them. You can't just install a later torque converter since they also changed the #splines on the input shaft, though there are ways to Frankenstein that.
