Rocker stud removal?
Thread Starter
Instructor
Joined: Sep 2015
Posts: 216
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From: Haverfordwest Pembrokeshire
Rocker stud removal?
I've been looking at upgrading to roller rockers and would like to change the studs for the screw in type but am worried about removing the original press in ones.
Is there a sure fire tried and tested method to successfully get them out?
I did try a search but didn't find anything helpful.
Many Thanks
Graham
Is there a sure fire tried and tested method to successfully get them out?
I did try a search but didn't find anything helpful.
Many Thanks
Graham
Race Director
Joined: May 2006
Posts: 18,620
Likes: 2,553
i was under the impression that this is a remove the head and send out to a machine shop job. The casting where the stud presses into has to be machined flat for a screw in stud. Getting them out you can place a socket or other tube like fixture and tighten the rocker arm nut to pull the stud out.
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Joined: Dec 1999
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From: Forked River NJ
This is a job for the machine shop. You can get them out like said above with a lot of effort. Then you need to machine the machine the pedestal flat and thread it. One false move and the head is junk. Better left to someone who knows what they are doing.
Thread Starter
Instructor
Joined: Sep 2015
Posts: 216
Likes: 16
From: Haverfordwest Pembrokeshire
I'll have a chat with my friendly machinist and see what he can suggest, some kind of spot face tool would be ideal, I'd rather do it without taking the heads off but then it would be an excuse to give them a refresh, new seals and a valve grind while they're off, nice job for next winter.
Graham
Graham
Race Director
Joined: Dec 1999
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From: Forked River NJ
Don't know what your motor combo is but before you start putting money into old heads there are way better heads out there already with screw in studs and they flow way better than older heads. Figure what you would have in the old heads with all the work vs a good set of new heads. Just a thought.
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Thread Starter
Instructor
Joined: Sep 2015
Posts: 216
Likes: 16
From: Haverfordwest Pembrokeshire
Don't know what your motor combo is but before you start putting money into old heads there are way better heads out there already with screw in studs and they flow way better than older heads. Figure what you would have in the old heads with all the work vs a good set of new heads. Just a thought.
I have a good friend with a full machine shop so machining would be at mates rates and I'm quite happy doing head work on my existing 8927186 heads, I'm not looking for mega hp just the best I can get with what I've got. While the heads are off it will give me a chance to try to figure what cam is in there as well as I have a feeling it's been changed from original.
My motor was originally a 350/350 which as far as I can tell from casting numbers etc. was rebuilt into a later truck block, I assume to get 4 bolt mains, but I don't know what else was thrown into the mix! I think the heads are original as the date April 2nd 1970 agrees with my build date June 1970.
Thanks All
Graham
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I had press in sstuds pull out on me before so they needed to be replaced. I just left the nuts on and turned them out, then used a lot of rags and tapped the holes with the heads on, YOu on the other hand want roller rockers so going to your friend the machinist for an opinion is a good option. Hopefully it all works out. If you do the work with the heads on be careful of random metal shavings, after the job is done I would get some cheap lightweight oil and flush the heads and then change the oil.
good luck
good luck