Bob, checked out all the casting numbers pages I could find and found nothing with an 889#. Closest is a few 839 numbers bot again nothing with your sequence. Tried 216, 235, 261, 292, etc. I think it may be a 235 or perhaps a 261 if your lucky. Where did you find that number on your engine?
Someone here is bound to come up with it if it's a legitimate number.
Thanks for the nice comments on my truck and BTW, I run 20W Pennzoil with no filter.
