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Arp Headstud Torque

sky30

By sky30,
in Engines & Forced Induction

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r33_racer Grand Master

r33_racer

Posted
Posted

from memory i think the torque is 100ft/lbs for headstuds. and i dont recall there ever being any problems with stud length in the head. Only problems with studs for the mains for the three long ones which you need to use some out of a different motor vg30 or something which you use two washers on. Hopefully im pretty close to being accurate, if not surely someone else will clear it up.

r33_racer Grand Master

r33_racer

Posted
Posted (edited)

its bloudy 100ft/lbs if you use oil...and its 79ft/lbs if you use their moly grease.

that is from arp.

that wasnt supposed to sound rude...so dont get wrong idea.

Edited by r33_racer
sky30 Mentor

sky30

Posted
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Posted
its bloudy 100ft/lbs if you use oil...and its 79ft/lbs if you use their moly grease.

that is from arp.

that wasnt supposed to sound rude...so dont get wrong idea.

Thanks Micheal, Its just that on the back of the box they give 3 differnt torques for 3 different tensiles, but how do you know what tensile you got, then in the box they put a paper that says 70ftlb i think.

  • 9 months later...
drgnball34 Rising Star

drgnball34

Posted
Posted (edited)

my builder told me today that we cant use all 14 arp headstuds. Apparenty the two for the middle of the head will cause oil gallery issues. So we going to opt to replace them with two standard ones instead. Has anyone used all 14 headstuds? This is for a NEO head onto a rb30 block. Im abit concerned as we going to push 2bar of t04z and NOS.

Edited by drgnball34
  • 4 months later...
xsv_32 Enthusiast

xsv_32

Posted
Posted

I bought my set the other week and im not too sure on this but do you use the allen key at the top of each stud to put them into the block and then torque them up or just leave them hand tight and do all the torqing from the top end once the head is on? May sound stupid but I dont want to f**k this up!!

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