silentvoice19

ok im not to sure about this maby im not understaning it at all i dont know help me out but i was lookin at the head bolt torque specs for the sr20det and it said
*cylinder head bolts tightening procedure:

a. tighten all bolts to 29 ft-lbs
b. tighten all bolts to 58 ft-lbs
c. loosen all bolts completely
d. Tighten all bolts to 25-35 ft-lbs
e. turn all bolts 90 to 95 degrees
f. Tighten all bolts 90 to 95 degrees again.

that sound right to you guys??????

RuizXIII

iTrader: (2)

I believe you have to torque them 29ft-lb then 58ft-lbs, back everything out, Then torque them back up. This process is supposed to allow for maximum seal. ( I bought aftermarket ARP studs so the process was slightly different)

And just remember to do the 90-95 turn thing and not turn bolts 180 at once. Moly lube would also be a good idea, to yield more accurate torque numbers.

jramosthe1st!

iTrader: (1)

the main thing to remeber when torquing anything is that you turn slowly and hold the applyed force for about 3 sec.

so if your using a clicking wratchet, once it clicks hold it steady for 2-3 sec.

this is to assure that the bolt has not twisted from a swift jerk on the wratchet.

silentvoice19

well im goin with arp head studs but how will those specs change and how did you know they changed.

RuizXIII

iTrader: (2)

you can torque the head bolts to about 80 ft lbs. The procedure shown on www.Phase2motortrend.com is torque in 3 steps of 30>60>80ft-lbs.

Also, the ARP style is different than the OEM bolts because it actually uses a stud and a 12pt. nut rather than the 1pc bolt.

silentvoice19

well what are the specs for the arp head studs or are those it

RuizXIII

iTrader: (2)

those are it. If you search the phase2 website they actually have a install walk through.

silentvoice19

nice yea i just saw it thanks man now all i need to do is find the main bolt torque specs and im set.