BfromSD

I am trying to put my motor back together and I need to know the proper Torque specs for the mains and head studs. the part #'s I find online dont match what is seen hear on ARP's web site. http://www.aptfast.com/ARP_Add...s.htm


I got the ARP-208-4601 B16 head studs ( I think these are the ones I bought for my LsVtec b16 head and b18b1 block)

ARP-208-5402 main studs

thanks for you help as I want to get started on this tonight.

BfromSD

bump

mmuller

ARP-208-4303 (vtec hs) 7/16

65/ 70 ft lbs with ARP moly lube
85 with 30 weight oil

sorry no personal info on mains

Desir Performance

We usually torque the head bolts down to 75lbs with molly lube, try and do this in at least 4 steps.

BfromSD

K thanks guys, anyone make anything out of the link?

mmuller

i got my specs right off the arp instructions

BfromSD

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">i got my specs right off the arp instructions</TD></TR></TABLE>
thats the thing, I built my motor 9 months ago and sence miss placed the directions.

Bump


edit: my bad, the head will be torqued to those spces. thanks


Modified by spicyEM1 at 8:09 PM 9/2/2006

Combustion Contraption

He's telling you the specs he posted above are right out of the ARP instructions.

Did you have have the block machined to accept the ARP mains?

BfromSD

I need the main spces also. I think ARP sets the torque specs based on what it takes to stretch the bolt 75% of its tensile straingth and both the main and head studs are rated at 190,000 psi so the torque specs have to be the same or really close. the only vairable I can think of with that logic is the effect of the length of the bolt.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">He's telling you the specs he posted above are right out of the ARP instructions.

Did you have have the block machined to accept the ARP mains?</TD></TR></TABLE>

I bought pistons .020 over and when it was bored they used the ARP bolts, I also had the main caps cut and align honed back to spec. good input tho thanks.

BfromSD

another thing is that the studs for the mains are AEBS but their still stamped ARP.

mmuller

what torque did you tell te machine shop to torque the arp's to; meaning to be able to hone the mains round again?
you are asking what the torque for the main should be...

Combustion Contraption

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">what torque did you tell te machine shop to torque the arp's to; meaning to be able to hone the mains round again?
you are asking what the torque for the main should be...</TD></TR></TABLE>

BfromSD

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">what torque did you tell te machine shop to torque the arp's to; meaning to be able to hone the mains round again?
you are asking what the torque for the main should be...</TD></TR></TABLE>

I gave the machine shop the studs new with the instructions . I also used a dial bore tool to check if it was out of round. Now I have to wait till Tuesday anyways because my dumb *** made a snap ring for the piston shoot across my garage so i have to get a new one and I will just call ARP then. I will post up the specs for people searching H-T's history later. thanks for the help anyways tho.

-Brian