1974 engine and the trans is a 999 converted to a non lock. Ill have to get the number off the trans to get the year but being a 999 it should be newer. I think. Engine and trans are not original to each other.
That should be OK.
PS: When you look at the converter pump drive, if it is not obviously cracked, use a magnifier. First time it happened to me, the crack was very hard to find.