Block casting letters
 

Does anyone know what the letters on the back of the block (where the trany bolts on just above the rear mount ) stand for? Oh this motor is a j-spec kldemillenia motor.

Mine read

CBB BBB LKKI

Others

KLZE

BCB BBB CDED
BCB CBB ????
BBB BBB WKKI

K8

ABB BBB GGHH

I gone to about 5 other forums looking for the answer.