Perhaps this little book could help? WHERE are the numbers you're quoting?
Usually the number below the alternator where head meets block is the best. Do you know for sure it's a 327? Does it have a 4" bore. As you probably know the only engs with a 4" in bore are 302, 327, and a 350. So assuming the
V3892657HF is the that number than it could be as follows (if you can read the printed page it all HF's from 3rd line to line 10 inclusive) if you can't read them I can quote them for you. Let me know.
