Quote:
Originally Posted by Big Vern
21030 - is probably the engine number though usually there are a couple of letters before the numbers
20HM-6015-BA is the part number for the cylinder block.
Don't know about the others
BV
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I would have thought the HM 6015 BA is the engine stamp. HM is November 1987. I assume this is a Ford engine? Ideally photos of where these numbers are and the actual engine details, would help put these numbers into context.