head bolt torque specs, for both KA and SR?

[devonkyle77]

if someone could please provide me with head bolt torque specs for both s14 ka and s14 sr i would appreciate it. i do not have FSMS on my new pc yet, sorry!
thanks in advance
-devon

[MomentumGT]

SR with ARP's at 70 with molly lube, if using regular motor oil torque it to 80.

-Jon

[statik]

S14 SR (page 63):
http://static.carvolution.org/files/S14_SR20DET_FSM.pdf

S14 KA (page 19):
http://static.carvolution.org/files/...X%20FSM/EM.PDF

[devonkyle77]

according to the fsm's, it looks like both (sr and ka) are to be torqued at no more than 60foot/lbs. am i reading this wrong? i appreciate your help thus far guys!

[statik]

Originally Posted by devonkyle77

according to the fsm's, it looks like both (sr and ka) are to be torqued at no more than 60foot/lbs. am i reading this wrong? i appreciate your help thus far guys!

the KA uses slightly less i believe but both go something like:

tighten to 30
tighten to 60
loosen
tighten to 30
tighten to 60 *(thanks russ)
DONE

check those pages for the exact numbers but those should be close

[pwhitersxs]

With my headgasket and arp headstuds, I torqued to 80 ft lbs on my SR. Many others torque to that value as well. I would not go less than 70 ft lbs for an SR.

[projectRDM]

Originally Posted by statik

the KA uses slightly less i believe but both go something like:

tighten to 30
tighten to 60
loosen
tighten to 30

DONE

check those pages for the exact numbers but those should be close

NO! unless you want a blown head gasket.

29ft-lbs
59ft-lbs
loosen
29ft-lbs
59ft-lbs

The first two steps stretch the bolt to spec.

[devonkyle77]

we are talking a new oem head gasket, new head studs on an sr.
just to be clear. like i said in a previous post, it looks like 60 ft lbs is what they want. you guys that are saying 70-80, or i will blow headgaskets, what is your reasoning?

[statik]

Originally Posted by projectRDM

NO! unless you want a blown head gasket.

29ft-lbs
59ft-lbs
loosen
29ft-lbs
59ft-lbs

The first two steps stretch the bolt to spec.

My bad, on the next page in the sr fsm after tightening to 30 it calls for turning all the bolts 90* with an angle wrench and then turning them all again another 90*, and looking at the "elastic" image next to the studs it looks like its supposed to be just slightly more than 60 in the end. With new studs you might want to do the last part in 2 steps as the fsm calls for.

[pwhitersxs]

Originally Posted by devonkyle77

we are talking a new oem head gasket, new head studs on an sr.
just to be clear. like i said in a previous post, it looks like 60 ft lbs is what they want. you guys that are saying 70-80, or i will blow headgaskets, what is your reasoning?

Where is Mr. Shadows. He always says how he uses the oem headbolts.

I even think the stock headbolts are greater than 60 ft lbs. I don't feel like looking it up right now, but I would torque them to atleast 70 ft lbs, or better yet, follow the fsm. The fsm is the best way to do it right.

The reason you want more torque is so your headgasket does not leak. I fear putting just 60 ft lbs will cause a slow leak and then you will have to replace it sooner than later.

[tt99ol]

if using arp studs you also have to torque them 5 times before final torque while using the moly lube that they provide