head stud torque specs

[da94broncodude]

whats everyone torquing their o-ringed heads to? ARPs updated specs with the new lube says 210 and thats what i torqued mine to, was that not enough? should i retorque higher?

 

[Strokethis213]

I did mine to 245 not o-ringed


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[JGman141]

210 is plenty for arp 2000 studs, beyond that you risk stretching the stud

 

[strokin6L]

The new moly lube changes the spec to 210 instead of 245....but still has the same clamping force as the 245 spec.

 

[Extended Power]

Went with 210 on my head studs.
Been over 3 years at 70+psi boost, and over100psi drive pressure.
No problems yet.
Not sure why people running 40-50psi boost need o ringed heads...

 

[borsky]

Because they don't ever want to do heads again. and for what it costs to do heads vs adding o rings. its cheap insurance.

 

[powerstrokedkid87]

Went with 210 on my head studs.
Been over 3 years at 70+psi boost, and over100psi drive pressure.
No problems yet.
Not sure why people running 40-50psi boost need o ringed heads...

this is what we do...

our normal head stud trucks we do to 215, I don't recommend oringed heads to the normal driver, anyone that we do additional power items to, I recommend it, its good insurance. but they still get torqued to 215.

however that being said, last year I torqued mine to 265, an dblew gaskets the 3rd time on a test run with compounds.

we used the 625 studs this time, torqued 265, so far no issues 1000 miles.