Re: Torque for bolts into aluminum parts

[Dave Casey <dcasey@xxxxxxxxxxxxx>]

I agree that as long as the threads are not in the aluminum, it shouldn't 
matter. The torque specification is based on the material in which the 
threads are cut and the size of the threads (3/8" UNC can take more than 
5/16" UNC, etc). There's a table somewhere of appropriate limits, often 
found in the back of engine building books. If you're really worried, use 
studs.

Dave Casey

----- Original Message ----- 
From: "David Kincaid" <dave.kincaid@xxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Wednesday, April 16, 2008 10:03 PM
Subject: Torque for bolts into aluminum parts


> I am installing an aluminum intake and water pump and housing on my 413. 
> I'm assuming the factory specified torque for the carb mounting studs, 
> water neck and pump to housing bolts will be too high for the aluminum 
> parts.  How much should I back off the torque to avoid stripping out the 
> holes?  Is there a good rule of thumb?
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Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.