04-18-2003, 01:42 PM
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Senior Club Cobra Member
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Join Date: Mar 2000
Location: St. Augustine,
FL
Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
Posts: 1,941
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Not Ranked
Hello Jay,
And then a miracle happened... 
The double sheave crank pulley is E7UZ-6A312-A
A single sheave pulley might have the number 4TZCA
Any one of these numbers could apply to a 1994 F250.
The reason for weasel-wording these numbers is that they come from 1-1/2 year old pencil notes which are a little hard to translate presently - sort of a paper-based Alzheimers 
The double sheave water pump pulley is most likely E7TZ-8509-AC
Hope any of this helps!
Tom
__________________
Wells's law of engine size: If it matters what gear you're in, the engine's too small!
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