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Old 01-31-2013, 12:35 PM
MouseFink MouseFink is offline
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The "double hump" heads (casting number 3991492 and 3990462) are equipped with screw-n studs and do not need any machine work. All they need are the correct screw in studs that will accept full roller rocker arms.

I thought those were the heads you were referring to when you wrote "double hump" heads. .

Last edited by MouseFink; 01-31-2013 at 12:41 PM.
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