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| Re: [GMCnet] Torque spec for Thorley headers [message #210881 is a reply to message #210879] |
Wed, 12 June 2013 20:14   |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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The "HOW TO" on the Applied site says this, see section 3.2:
3. Install the Thorley headers using the instructions provided by them in the box.
Please note the following:
3.1. In order to install the left header you must remove 9/16ths headed 3/8ths
bolt that holds the transmission oil dipstick in place, the dipstick can be
disconnected in the center at the union. Pull the top part up and out of the way.
Be careful not to bend it to much and do not try to remove the oil dipstick tube.
The header flange must go over and between the tube and head surface.
3.2. Start all bolts using star washers & silicone cement or Locktite 271 on threads
to keep them tight. Use 65lbs. of torque to tighten the end and re-tighten once,
instead of the specifications provided by Thorley.
JR Wright
78 Buskirk Stretch
Michigan
On Jun 12, 2013, at 8:49 PM, Dan Borlase <bord@shaw.ca> wrote:
>
>
> ...so I'm throwing on new Thorley header gaskets...anyone know the torque settings hot and cold ?
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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