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Old 10-06-2010, 12:06 PM
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Are these stock SBC rods any good?

Hey guys i just have a quick question. I have a couple sets of these rods hanging around from stock motors i have taken apart. They are a lot heavier than most GM rods i have dealt with so far. Anyone have any input on what kind of power they might be good for. Ditching the stock bolts of coarse. Thanks for your insight.
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Old 10-06-2010, 12:49 PM
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Those appear to be powdered metal or "PM" rods. They are said to be stronger than the GM "pink" rod. These rods came in LT1 engines and some vortec engines. I know some guys shooting them pretty hard with nitrous and they`ve held up well. We`ve ran them and still have a few sets in use and haven`t had any issues of yet.
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Old 10-06-2010, 04:07 PM
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PM rods. My left turn customers love em..
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Old 10-06-2010, 05:17 PM
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Is there any advantage in polishing these rods? I'm thinking no, but does anyone know?
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Old 10-06-2010, 05:23 PM
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PM rod from a '97 L31 Vortec on Right in both photos, rod on Left from '92 TBI 5.7L SBC:



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Old 10-07-2010, 05:31 AM
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Awesome. Thanks for all the replies everyone.
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Old 10-07-2010, 09:52 AM
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PM rods are manufactured from a special process that creates a very dense metal. They are much stronger than older rods..
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Old 10-07-2010, 10:18 AM
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They're not indestructible, though!



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