Thread: 72 429 69 HEADS Pushrod Size?
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06-05-2007 12:13 PM #4
Originally Posted by Mempho
Whether you need the factory length 8.55" pushrod or not depends on which rocker arms you run. Most all aftermarket rocker arms will require a pushrod length that is different than stock and/or applicable only to that brand roller rocker, in order to establish correct rocker arm geomtery, so if you run the Comp Pro-Magnums as you intend, you will first need to figure out your rocker arm geometry and then order the correct length pushrods.
With roller rockers, you will need to run hardened pushrods with the guideplates, because standard pushrods will be chewed up by the guideplates.
Paul
429/460 Engine Fanatic
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