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#767886 - Tue Aug 02 2011 11:56 AM 503 gmc inline six
ga truck nut Offline
New Guy
Registered: Wed Jan 30 2008 07:55 AM
Posts: 21
Loc: ga
does any body know the torque spec. for the head bolts & the torque pattern for the head bolts thanks on the 503 gmc .
_________________________
1950 Chevy 5700 COE
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#767948 - Tue Aug 02 2011 04:05 PM Re: 503 gmc inline six [Re: ga truck nut]
3B Offline
Master Gabster
Registered: Wed Nov 09 2005 12:00 PM
Posts: 5042
Loc: B. C. Canada
Hy ga truck nut, the torques are different depending on the year 52-53, and 57-59 are 75-80 lb. ft., 54-56 are 80-90 lb. ft.. When she who must be obeyed returns home from work I'll have her post a picture of the pattern for you [I'm not confusilator savy enough for that]
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#767959 - Tue Aug 02 2011 04:45 PM Re: 503 gmc inline six [Re: 3B]
ga truck nut Offline
New Guy
Registered: Wed Jan 30 2008 07:55 AM
Posts: 21
Loc: ga
thank you very much
_________________________
1950 Chevy 5700 COE
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#768033 - Tue Aug 02 2011 07:39 PM Re: 503 gmc inline six [Re: ga truck nut]
3B Offline
Master Gabster
Registered: Wed Nov 09 2005 12:00 PM
Posts: 5042
Loc: B. C. Canada
Hy ga truck nut, here is the link, the pattern is on the lower right side of the page, hope that helps. Are you reinstalling the head after repairs to whatever was causing rocker arms to break? If you told us what was done, I missed it, could you summarise what was done to repair the problem please?


http://i120.photobucket.com/albums/o178/pintos4me/TorqueSequence.jpg
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#768104 - Tue Aug 02 2011 10:01 PM Re: 503 gmc inline six [Re: 3B]
ga truck nut Offline
New Guy
Registered: Wed Jan 30 2008 07:55 AM
Posts: 21
Loc: ga
sorry i havent told you what was wrong the machine shop that did the valve work put valves in that was to short. I took it to some body else that says they have it fixed know. cross your fingers.
_________________________
1950 Chevy 5700 COE
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#768226 - Wed Aug 03 2011 10:34 AM Re: 503 gmc inline six [Re: ga truck nut]
bowtietim Offline
Shop Shark
Registered: Thu Dec 08 2005 12:00 PM
Posts: 3274
Loc: Kansas
Ga truck nut,Would it be possible for you to post some pictures of your 503 GMC ? I read your post and never knew there was such a engine.I tried Google and got some material to read,but didn't find one picture.


Tim
_________________________
"A house is built with boards and beams,a home is built with love and dreams"

Look deep before you leep !!!

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My 1951 Chevrolet 3100

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