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3 Bolt Circle on Crank Pulley 3 Bolt Circle on Crank Pulley
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Old 04-11-2013, 09:52 PM
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Default 3 Bolt Circle on Crank Pulley
Is the 3 bolt circle on the Crank pulley for Ford and Chevrolet ever so slightly different? Chevrolet being the smaller??? I went to trial fit a pulley on Ford Spec ATI damper and the holes do not line up .030-.050 different???
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Old 04-12-2013, 06:52 AM
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yep, common on aftermarket balancers...i just open all three holes up on the pulley with the next size drill......
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Old 04-13-2013, 08:36 PM
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Thanks, why don't they just make them the correct dimension instead of "One size fits all"?
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Old 04-13-2013, 09:11 PM
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Old 04-13-2013, 09:33 PM
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China? probably true, but this was still the case in the 80's, with aftermarket,
i look at it as laziness to engineer the part fully....kinda a modification from the GM part to just barely fit the Ford application,
look at MSD pro billet dist. its a GM modified, its too tall....for a rear mounted dizzy ok,...... but the front?
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