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By blocky - 6 Years Ago
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hi i need to know what is the pushrod length and rocker arm length for a standard 272 that is out to 292
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By charliemccraney - 6 Years Ago
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What do you mean? Those don't necessarily change.
Rocker arm length is not usually a spec people look for. Do you mean rocker arm ratio?
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By blocky - 6 Years Ago
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yes the ratio and there are 2 different length pushrods apparently. i bought new rods and they are slightly longer???
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By charliemccraney - 6 Years Ago
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If the significant change is that you bored a 272 to 292, then the ratio and pushrod length remain the same.
Pushrods required depend on the heads, with '54,'55 and '60-'64 being long and '56 to '59 being short. Factory rockers were 1.43 or 1.54:1. High ratio are marked ECG.
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By paul2748 - 6 Years Ago
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Check Mummert's site for push rod length
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By blocky - 6 Years Ago
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thank you to all who replied
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