LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

LT1 Head Bolts

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Old 05-15-2011, 11:30 AM
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LT1 Head Bolts

Are the head bolts on a 93 lt1 torque to yield bolts? I've heard some lt1s have them and others don't.
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Old 05-15-2011, 04:23 PM
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Re: LT1 Head Bolts

93 stock are not.
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Old 05-15-2011, 04:55 PM
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Re: LT1 Head Bolts

If you need head bolts, go to your gm dealer and order 12495499. This is a head bolt kit with teflon coating on the threads. Cost me 28.13 plus tax. Does both heads.

hth

andy schuck
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Old 05-15-2011, 05:31 PM
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Re: LT1 Head Bolts

Originally Posted by andysc
If you need head bolts, go to your gm dealer and order 12495499. This is a head bolt kit with teflon coating on the threads. Cost me 28.13 plus tax. Does both heads.

hth

andy schuck
Beware that those are likely TTY bolts (from the way they look). Use one time and throw away. I would recommend some ARP bolts that are stronger and can be reused.
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