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Old Feb 26, 2012 | 09:22 PM
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Default install intake manifold

What is the torque & bolt pattern to install a 1972 LT-1 intake manifold? Also, any other suggestions.
Thanks.
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Old Feb 26, 2012 | 10:29 PM
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Originally Posted by ray3222
What is the torque & bolt pattern to install a 1972 LT-1 intake manifold? Also, any other suggestions.
Thanks.

Google Image searches are you friend.

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Old Feb 26, 2012 | 11:18 PM
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Thank-you Mark.


Ray
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Old Feb 27, 2012 | 12:05 AM
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Default one other suggestion

one other suggestion IMHO, I think it is good practice to go 1/3, 2/3 and finally 100% of the torque values so you reach the final torque value in the third round for all of the bolts. (Please excuse if I am repeating something you already know)
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Old Feb 27, 2012 | 08:03 AM
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Originally Posted by 20mercury
one other suggestion IMHO, I think it is good practice to go 1/3, 2/3 and finally 100% of the torque values so you reach the final torque value in the third round for all of the bolts. (Please excuse if I am repeating something you already know)

That is a good practice to be sure but not quite needed for things like the intake. That procedure is most valuable when torquing down cylinder heads or rod / main caps.
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Old Feb 27, 2012 | 11:01 AM
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Originally Posted by 20mercury
one other suggestion IMHO, I think it is good practice to go 1/3, 2/3 and finally 100% of the torque values so you reach the final torque value in the third round for all of the bolts. (Please excuse if I am repeating something you already know)
I agree. Even if it is not strictly necessary, it's a good habit to do that. It doesn't add much time to the job.
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Old Feb 27, 2012 | 01:05 PM
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Originally Posted by 20mercury
one other suggestion IMHO, I think it is good practice to go 1/3, 2/3 and finally 100% of the torque values so you reach the final torque value in the third round for all of the bolts. (Please excuse if I am repeating something you already know)
I also agree with this. It's not critical with a cast intake, but with an aluminum intake it's a good habit to have. An aluminum intake will twist and flex like crazy while being torqued down. Using a stepped approach will help you maintain a even "twist" on the intake and keep your intake gaskets from moving around so much while you torque things down. True, your gaskets can't "move" much because the bolts go through them, BUT, it will keep your gasket adhesive from spreading around and the thin portions between your intake ports centered as much as possible. Simply put - it's just good practice in engine assembly.



Adam
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Old Feb 27, 2012 | 02:56 PM
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Thanks 20mercury.
Now I can get started.

Ray
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Thanks guys, one less thing to look up in the manual this spring.
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