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Old 04-01-2011, 01:09 AM
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Originally Posted by 86GMCK1500
thank you, what is the difference between cast iron guides #12407-01 and premium guides #12410-01?
Cast iron guides are cheaper to manufacture. Bronze guides are more costly. Is there an advantage to bronze? Probably longer wearing, but I would be happy with cast iron. Zillions of Chevy motors were produced with cast iron guides.
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