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#767886 - Tue Aug 02 2011 04:56 PM 503 gmc inline six  
ga truck nut  Offline
New Guy
Joined: Jan 2008
Posts: 21
ga
does any body know the torque spec. for the head bolts & the torque pattern for the head bolts thanks on the 503 gmc .



#767948 - Tue Aug 02 2011 09:05 PM Re: 503 gmc inline six [Re: ga truck nut]  
3B  Offline
Master Gabster
Joined: Nov 2005
Posts: 5,282
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]


#767959 - Tue Aug 02 2011 09:45 PM Re: 503 gmc inline six [Re: 3B]  
ga truck nut  Offline
New Guy
Joined: Jan 2008
Posts: 21
ga
thank you very much


#768033 - Wed Aug 03 2011 12:39 AM Re: 503 gmc inline six [Re: ga truck nut]  
3B  Offline
Master Gabster
Joined: Nov 2005
Posts: 5,282
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


#768104 - Wed Aug 03 2011 03:01 AM Re: 503 gmc inline six [Re: 3B]  
ga truck nut  Offline
New Guy
Joined: Jan 2008
Posts: 21
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.


#768226 - Wed Aug 03 2011 03:34 PM Re: 503 gmc inline six [Re: ga truck nut]  
bowtietim  Offline
Shop Shark
Joined: Dec 2005
Posts: 3,324
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"

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