Quote:
Originally Posted by Franny's Flatty
Are there any numbers on the block that would identify it? A Mercury crank is more desirable?
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Answer to the first question is not really.
SOME late flatheads have a date code stamped on top of the block by the intake manifold; but that's about it. Most of the numbers you find on these blocks are pretty meaningless now.
And yes, a Merc crank is desirable... if that's what it has.
Only way to know is tear into it...