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HEAD STUDS - LS Block - Torque Specs ???

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Old Nov 1, 2020 | 06:34 PM
  #1  
ez2cdave's Avatar
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From: Louisburg, NC USA
Car: 1989 Camaro IROC Z
Engine: 383, soon to be an LS Stroker
Transmission: 700R4 - Switching to 4L80E
Axle/Gears: 10-Bolt/3.42 will be Moser 12-Bolt
HEAD STUDS - LS Block - Torque Specs ???

QUESTION . . . When using Head Studs on an LS block ( iron LQ4, in this case ), instead of Bolts, what is the correct Torque Spec, since Head Studs don't "Torque To Yield" ?

Thanks, in advance !
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Old Nov 1, 2020 | 08:07 PM
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Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: HEAD STUDS - LS Block - Torque Specs ???

Talk to the manufacturer
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Old Nov 1, 2020 | 08:54 PM
  #3  
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From: Portland, OR
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: HEAD STUDS - LS Block - Torque Specs ???

If they are ARP, then they will come with instructions or you can also download them from the internet.

GD
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Old Nov 1, 2020 | 09:22 PM
  #4  
ez2cdave's Avatar
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Joined: Jun 2013
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From: Louisburg, NC USA
Car: 1989 Camaro IROC Z
Engine: 383, soon to be an LS Stroker
Transmission: 700R4 - Switching to 4L80E
Axle/Gears: 10-Bolt/3.42 will be Moser 12-Bolt
Re: HEAD STUDS - LS Block - Torque Specs ???

Originally Posted by scooter
Talk to the manufacturer
Originally Posted by GeneralDisorder
If they are ARP, then they will come with instructions or you can also download them from the internet.

GD
I hope they are "application specific" . . .

I'm not worried about installing the studs into the block, but I am concerned about getting the correct torque spec using nuts, rather than bolts, on the heads themselves..

I think I'll give ARP a call tomorrow and see what I can find out.

Thanks !
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Old Nov 1, 2020 | 10:09 PM
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Re: HEAD STUDS - LS Block - Torque Specs ???

ARP for LS engines with stock thread sizes

https://static.summitracing.com/glob...p-234-4317.pdf
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Old Nov 2, 2020 | 08:24 AM
  #6  
ez2cdave's Avatar
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Joined: Jun 2013
Posts: 220
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From: Louisburg, NC USA
Car: 1989 Camaro IROC Z
Engine: 383, soon to be an LS Stroker
Transmission: 700R4 - Switching to 4L80E
Axle/Gears: 10-Bolt/3.42 will be Moser 12-Bolt
Re: HEAD STUDS - LS Block - Torque Specs ???

Originally Posted by QwkTrip
ARP for LS engines with stock thread sizes

https://static.summitracing.com/glob...p-234-4317.pdf

Excellent . . . Exactly what I was looking for !

Many Thanks !
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