Thread: 427 Ford Head ID
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09-26-2003 04:59 PM #1
427 Ford Head ID
I have some heads, supposedly off a 427 ford engine. Possibly a marine engine?? The numbers aren't like any I've seen...
The slanted numbers near the spark plug holes read:
575 and 2143
Then there is a 91X under the valve cover area.
Any one have a clue? Are these regular, med riser or what?
Would really appreciate any info!!!
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