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Old 10-26-2020, 11:55 AM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by Michael C Henry View Post
PCD" kept coming up I still do not know what that means.

That's Pitch Circle Diameter. It's the diameter of the circle as it passes through the center of the holes.
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