LT1-LT4 Modifications 1993-97 Gen II Small Block V8

rounded off head bolts

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Old 08-15-2011, 04:53 PM
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Default rounded off head bolts

I am taking my heads off to get them rebuilt, in the process a few of the bolt heads got rounded off
i already got 2 sets of 'bolt-outs'
the 1st set had a 13 in it, which is the size of the bolts, but it didnt work and seemed too small
took it back for another set with a 14. still didnt work, was too big

any suggestions?
Old 08-15-2011, 05:10 PM
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Using a 6 point socket would have prevented this problem. About all you can do is try hammering on a 6 pt socket .IIR its a 9/16ths. If that doesn't work you can cut the heads off or drill them off, remove the cylinder heads and use vise grips or a small pipe wrench on them. Good luck with it.
Old 08-15-2011, 05:22 PM
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im pretty sure i am using a 6 pt.
what is IIR? and how could i cut them off??
Old 08-15-2011, 05:23 PM
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"If I Remember"
Old 08-15-2011, 05:25 PM
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IIR-- If I recall.Maybe its 1/2 inch. It is NOT metric. Hammer it ALL the way on. Use a die grinder with a cutting wheel. Access maybe a problem.
Old 08-15-2011, 05:32 PM
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is this what your suggesting i hammer on?

http://www.sears.com/shc/s/p_10153_1...7&blockType=G7
Old 08-15-2011, 06:19 PM
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no a 6 point socket. there are 6 and 12 point sockets. Using a 12point can sometimes result in rounded heads, I wouldnt just assume thats what you were using but its a possibiliy.


Look at the socket where the bolt goes in, count how many corners it has lol.

He is saying use a 6 point and hammer it on if you can. Other option is to use a grinder/cut off wheel and try to recreate the bolt head to something close to what it was.

Bad problem to have man, sucks to hear that.
Old 08-15-2011, 08:10 PM
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Originally Posted by kissrocker1200
I am taking my heads off to get them rebuilt, in the process a few of the bolt heads got rounded off
i already got 2 sets of 'bolt-outs'
the 1st set had a 13 in it, which is the size of the bolts, but it didnt work and seemed too small
took it back for another set with a 14. still didnt work, was too big

any suggestions?
The head bolts are not metric. Always use a 6 point socket.
Old 08-15-2011, 08:36 PM
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well i know for sure i did use a 6 pt and not what was in the link
my socket set is a metric/standard set.
i posted that because i remembered seeing them at sears and knew they needed to be hammered on. gonna try one more day before trying to cut the heads of the bolts off.
Old 08-16-2011, 03:29 AM
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If you already have the bolt remover set that is what I would use....



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