header bolt torque?
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Joined: Apr 2008
Posts: 99
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From: Ames, IA
Car: 1989 Camaro Iroc-Z
Engine: 5.7 L98 Carb. Alum. Heads
Transmission: T-5
Axle/Gears: 3.08 Limited Slip
header bolt torque?
I am installing hedman 68460 long tube headers on my 89 camaro and it has aluminum heads. What should I torque the bolts too? I think someone said 25 foot pounds? I don't have a torque wrench but may be able to borrow one. Or can I do it just by feel? Thanks.
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Are your header bolts 7/16" head? If so, just tighten them with a standard combination wrench.
Or, borrow a torque wrench. I believe Auto Zone will loan you one. Of course, there are a few bolts you can't get a socket on, anyway.
Or, borrow a torque wrench. I believe Auto Zone will loan you one. Of course, there are a few bolts you can't get a socket on, anyway.
Thread Starter
Junior Member
iTrader: (1)
Joined: Apr 2008
Posts: 99
Likes: 1
From: Ames, IA
Car: 1989 Camaro Iroc-Z
Engine: 5.7 L98 Carb. Alum. Heads
Transmission: T-5
Axle/Gears: 3.08 Limited Slip
Re: header bolt torque?
Ya I noticed that you couldn't get the socket on some so I prb. just do it by hand. Well the 11mm works and I can't remember the standard size. I only have standard wrenches but for the socket I used the 11mm for some reason, just can't remember the standard right now lol.
Joined: Jul 1999
Posts: 10,950
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: header bolt torque?
I just tighten my headers bolts to "good'n'tight" but dont overtighten them. You dont want to strip out the aluminum.
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