Press in rocker arm stud bolts needed! - Pontiac GTO Forum
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post #1 of 7 (permalink) Old 09-24-2019, 08:38 PM Thread Starter
 
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Press in rocker arm stud bolts needed!

A pressed in rocker arm stud bolt broke on my 1965 389 head. I got it out and started looking for a few online. I can't find any press in studs anywhere. I want to drive this (new to me) beautiful car a bit before pulling the heads and having them threaded to accept screw in studs. Do any of you know who might have a few available? Mine is a bottleneck 3/8 threaded top and 7/16 press in base. Total length approx 2.042 inches. A straight 7/16 would also work. I also would like to replace a couple of push rods that dont pass the roll on the flat surface test. They are 8.625 inches long and .3 inch diameter. Any leads are appreciated.
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post #2 of 7 (permalink) Old 09-24-2019, 10:10 PM
 
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Call Butler Pontiac Performance in Tennessee, they will help you out, and they have all those pushrods sizes in stock, they ship fast and will advise you on that rocker.

You may have top tap it and put in heli-coil threaded insert and then threaded stud.....

Good luck
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post #3 of 7 (permalink) Old 09-24-2019, 10:42 PM Thread Starter
 
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Thank you. I will call Butler tomorrow
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post #4 of 7 (permalink) Old 09-25-2019, 12:08 PM Thread Starter
 
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Butler hasn't carried any press in bolts for a long while. I am checking with machinists in my area.
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post #5 of 7 (permalink) Old 09-25-2019, 04:59 PM
 
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Yeah, I was thinking more of you tapping the stud with a thread tap and adding a helicoil insert and then using a screw in stud.

That is how they often do the screw in studs.....from original press in because of the size.
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post #6 of 7 (permalink) Old 09-25-2019, 05:22 PM
 
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Quote:
Originally Posted by jjminor View Post
Butler hasn't carried any press in bolts for a long while. I am checking with machinists in my area.
If you REALLY want a replacement press-in stud, my guess is that there are lots of Pontiac guys on some of the Pontiac forums & FB pages who will give you some for just enuff to pay for the postage to mail it.

There are lots of guys who have had their heads converted to screw-in studs, and may have kept the old studs. Probably lots of other guys who have some of the junk heads they could pull a stud out of, for you.
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post #7 of 7 (permalink) Old 09-26-2019, 07:33 AM Thread Starter
 
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Does anyone have a few of these studs that they will part with? This warm weather in Ohio wont last much longer and I would love to drive my new Goat before the snow flies.
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