Replacing Rocker Arm Studs
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Le Mans Master
Joined: Aug 2010
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From: Bussey, IA
Replacing Rocker Arm Studs
Finally doing the building on my 68 L79. I am replacing the rocker arm studs. When we screw in the ones do I need to use thread sealant or blue locktite?
Le Mans Master
Joined: Mar 2004
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From: Little Rock AR
Assuming your machinist is doing the modifications....the studs can use locktite on the threads and you can use sealer on the top of the boss and both sides of the guideplates.
The factory guideplates and pushrods can be pre-assembled because the tolerance allowance is very tight. No need to align those as there isnt much allowable adjustment. Factory did not have the time or skill to do it and the machining was very accurate.
Any aftermarket pieces would be better installed at final assembly where you can better align the rocker tips to the valve stems. They give you more adjustability.
The factory guideplates and pushrods can be pre-assembled because the tolerance allowance is very tight. No need to align those as there isnt much allowable adjustment. Factory did not have the time or skill to do it and the machining was very accurate.
Any aftermarket pieces would be better installed at final assembly where you can better align the rocker tips to the valve stems. They give you more adjustability.
Last edited by stingr69; May 23, 2026 at 10:00 AM.
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Le Mans Master
Joined: Jan 2006
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From: Butler Pa
Obviously.
Le Mans Master
Joined: Jan 2006
Posts: 6,506
Likes: 139
From: Butler Pa
