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Old 12-03-2012, 11:48 AM
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1971BB427 1971BB427 is offline
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Yes, clearances can be an issue, especially if you have guide plates, and if you don't have guide plates and screw in studs, then you should upgrade to them! Also be sure to order hardened pushrods when you get new ones, as standard pushrods can wear on guideplates and break.
Buying 1.6 rockers sounds like cheap HP upgrade, but it causes a trickle effect, and can lead to some work, and a fair amount of money to make them work. Be sure you've got valve to piston clearance for the higher lift too, as Bogie mentioned.
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