Pinning Rocker Arm Studs
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Cross-Country
Joined: Nov 2012
Posts: 54
Likes: 2
From: Flat Rock, MI
Pinning Rocker Arm Studs
The engine rebuilder/machinist said a couple of the rocker arm studs had started to pull out of the cylinder head. He replaced them with oversized studs (I think). Maybe I'll have to follow up with him to be sure! I wonder if this is why I had some upper end ticking going on?
Anyway, one of the guys I work with has pumped up his 302 for his Mustang and said I should consider pinning the rocker arm studs to prevent future stud pull out. Either this or consider having the studs removed and new thread in studs installed. I'm not doing a high performance overall; although I am planning on the Offy Intake/4 bbl/header kit along with the 260H cam.
Has anyone here ever pinned their rocker arm studs? I see kits in Summit's catalog. Thought? Opinions?
Tha's all I know for now...
Anyway, one of the guys I work with has pumped up his 302 for his Mustang and said I should consider pinning the rocker arm studs to prevent future stud pull out. Either this or consider having the studs removed and new thread in studs installed. I'm not doing a high performance overall; although I am planning on the Offy Intake/4 bbl/header kit along with the 260H cam.
Has anyone here ever pinned their rocker arm studs? I see kits in Summit's catalog. Thought? Opinions?
Tha's all I know for now...
Tuned
Joined: Sep 2012
Posts: 367
Likes: 2
From: summerfield florida
If you pin them, be careful where you drill the holes - you might just strike antifreeze. I did, hopefully you won't. ...jack
oh, by the way, if you do strike antifreeze, just drill and tap, install screw-in stud with thread sealer.
oh, by the way, if you do strike antifreeze, just drill and tap, install screw-in stud with thread sealer.
Lead Driver
Joined: Dec 2012
Posts: 7,878
Likes: 50
From: Tennessee
A few years ago I installed screw in studs in a couple of engines . They were small block chevy . Not to hard a job . They were pulling out the pressed in studs . The screw in ones fixed it for good .
Lead Driver
Joined: Dec 2012
Posts: 7,878
Likes: 50
From: Tennessee
I would think to pin them would cost more . To me screw in is easier . That is , if there is enough stock to do it . I would think easier to tap and install than to drill and pin . I may be wrong , Just my thought !
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Lead Driver
Joined: Mar 2008
Posts: 7,196
Likes: 387
From: Near Los Angeles
Just go with the screw in ones. It is easier and less expensive. You can buy a set of ARP small block chevy screw ins from Summit Racing online for about $50.
I imagine a shop should charge about $50 to remove and tap yours.
Good luck.
I imagine a shop should charge about $50 to remove and tap yours.
Good luck.
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