Thread: what is a reasonable reliable rpm for 572 4.5 by 4.5
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Old 05-14-2007, 06:40 AM
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billhendren
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Join Date: Dec 2005
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7000 would be a piston speed of 5250,thats pushing it for the parts you have.I would replace the rod bolts with custom age 625 at least,there a far better bolt.Bill
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