This is on the side of my 3Bii block. Original engine, vehicle construction date 07/1989:
Now I read this as '9' meaning 1989, and '6' meaning June. or could it be Week 6 of 1989? No idea what UB means!
Wondering if anyone knows more or can correct me?
Before anyone chimes in with it, no, these are not the casting marks indicating the choice of STD size main bearing shells. (1/2/3 etc).
Thanks
EO
Now I read this as '9' meaning 1989, and '6' meaning June. or could it be Week 6 of 1989? No idea what UB means!
Wondering if anyone knows more or can correct me?
Before anyone chimes in with it, no, these are not the casting marks indicating the choice of STD size main bearing shells. (1/2/3 etc).
Thanks
EO
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