This is a 1600 cc engine made from late 1970 to 1972 for the Beetle.
your missing a number but all AE motor were 71 72 &73
if this is for a (type1) beetle, then it means you have a 1300 LSD (ae) registered between August & December 1955 (980123)
Ford 7.8l
1970 , 1600cc
70-72 1600 dual port
AE 1971/72 1600cc - dual relief, dual port
AE 1971/72 1600cc - dual relief, dual port
Manufactured from late 1970 to late 1972 (model year 1971 to 1973) this would be a 1600 cc engine.
An ice ae is
AE 1971/72 1600cc - dual relief, dual port
87637years
That's a 1600 cc engine used in model year 1971 through 1973 Type 1 Beetles.