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#1
03-16-2006, 06:51 AM
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L89 head bolt torque
Whats the proper torque for these aluminum heads anyay ??
__________________
 <span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience. 
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#3
03-16-2006, 08:11 AM
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Re: L89 head bolt torque
__________________
<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#4
03-17-2006, 04:42 AM
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Re: L89 head bolt torque
Bob,
Are you using the hardened steel washers with the head bolts? Steve
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#5
03-17-2006, 06:57 AM
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Re: L89 head bolt torque
No..they look like stock head bolts not ARP type
__________________
<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#6
03-17-2006, 07:00 PM
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Re: L89 head bolt torque
Bob,
Stock L/89 head bolts used the washers. I investigated this a couple of years ago for an L/89 project. I talked to a number of unrestored L/89 owners ( NCRS.ORG ) and Jerry MacNeish as he owned an original L/89 69 Chevelle. In every case, I found that original L/89's used hardened steel washers under the head bolts. I can try to dig up that information for you. BTW, the stock washers are still available from GM. If you think about it logically, the washers keep the bolt seats from getting badly marred during assembly. Steve
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