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Head Stud Torque Specs 

 

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 Post subject: Head Stud Torque Specs
Posted: Wed Jan 15, 2020 11:46 pm 
Tyre Shredder
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Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Hi. I am just wondering what would be the best head torque setting using ARP head studs with MLS AU head gasket ?
It's a Ford EL 4.0L 6cyl.
I know the factory specs for the MLS AU head gasket which is
30nm then 120 degrees.
But i found a JMM head torque spaecs that he uses
*40nm
*80nm
*110nm
What do you guys think ?

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, SPR ported head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Head Stud Torque Specs
Posted: Thu Jan 16, 2020 2:10 pm 
Getting Side Ways
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Ride: EF-XR6/XG-6/XE-V8- project

racer wrote:
Hi. I am just wondering what would be the best head torque setting using ARP head studs with MLS AU head gasket ?
It's a Ford EL 4.0L 6cyl.
I know the factory specs for the MLS AU head gasket which is
30nm then 120 degrees.
But i found a JMM head torque spaecs that he uses
*40nm
*80nm
*110nm
What do you guys think ?


If you're using ARP head studs you certainly don't want to use the the normal ford torque specs. That's for torque to yield head bolts that are meant to be stretched and single use only.
ARP instructions should be included with them and I'm fairly sure it's similar to JMM specs you just quoted.

 

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 Post subject: Re: Head Stud Torque Specs
Posted: Thu Jan 16, 2020 4:01 pm 
Getting Side Ways
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The ARP book says a 12mm stud should be torqued to 98 ft./lbs. (132.87nm) with the ARP lube.

Do it in 3 steps, and in the same patterns as OEM, and you should be sweet. 8-)

 

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 Post subject: Re: Head Stud Torque Specs
Posted: Sat Jan 18, 2020 7:08 pm 
Tyre Shredder
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Posts: 357

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Thanks guys i'm thinking i'll do a
step 1 - 40nm
step 2 - 80nm
step 3 - 120nm
your thoughts on that guys

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, SPR ported head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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