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ponchomaniac
Joined: 07 Dec 2011 Posts: 10 Location:
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Posted: Sun Jan 08, 2012 8:30 pm Post subject: 1963 389 engine torque specs. |
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Where do I go in your site to find out the torque specs. for the 389 engine that I'm rebuilding?
I need main bearing, rod bearing, heads, intake, etc.
Thank you, Tom _________________ |
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Larry Site Admin
Joined: 01 Jun 2006 Posts: 4772
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Posted: Sun Jan 08, 2012 9:30 pm Post subject: Engine Torque Values |
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Unfortunately I am still looking for a 1963 Shop Manual to get in our On-Line Reference Library. However, the shot below is from a Motors Auto Repair Manual. It is pretty inclusive of all the V-8s and a large year span.
As a little double check I have looked at the 1965 Pontiac Shop Manual I have. It concurs pretty well except that for the main bearing is shows 100# plus or minus 10#. So it is actually well within the 95# range shown by Motors. It shows the rear main as 120# also plus or minus 10#.
Connecting rods shows 43# plus or minus 3#, also in range with Motors figures. Cylinder heads are shown as 95# plus or minus 5#.
Manifolds are shown the same with a plus or minus 5#.
Remember to stager your sequences as you tighten too. Follow exact recommended sequence for heads though.
Hope this helped. _________________ PontiacRegistry.com... building the single largest source of Pontiac information, services, and entertainment in the world! |
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ponchomaniac
Joined: 07 Dec 2011 Posts: 10 Location:
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Posted: Sun Jan 08, 2012 9:51 pm Post subject: |
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Thanks for the info. Larry. I just finished up sandblasting, priming and painting the frame. Now to rebuild the engine and the rotohydramatic and get that into the frame and I'll start on the body. _________________ |
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Larry Site Admin
Joined: 01 Jun 2006 Posts: 4772
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Posted: Mon Jan 09, 2012 8:44 am Post subject: Specs |
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Glad I could help. Yell if you need anything else.
Remember as you tackle that Roto to contact our automatic transmission technical advisor, Steve Peluso, if you need any help. He is an expert on those and other Pontiac transmissions.
Keep us posted on your progress. _________________ PontiacRegistry.com... building the single largest source of Pontiac information, services, and entertainment in the world! |
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