ARP head bolts help

devsdad01 · 08-12-2011, 01:52 AM

Can anyone tell me what I should tourqe the bolts down to on a 7MGTE? Keep in mind I am using BOLTS and not studs. Not wanting to go wild on this engine just replace the blown gasket with a mild upgrade in the bolts so I can add a little tourqe with confidence that they will hold and not have to go through this again any time soon. Thanks for the help.

907mge · 08-12-2011, 01:56 AM

I think it is 75lbs. with moly lube. Didn't they come with a paper with the spec on it?

devsdad01 · 08-12-2011, 02:02 AM

Came with the paper but it is in bad shape after shipping so not really readable lol. I was thinking 75 in three steps but wasn't sure and REALLY don't want to strip anything out.

907mge · 08-12-2011, 10:28 PM

As long as you have the moly lube you should be fine with 75. I know when I put in the studs it was 90. But if you are using motor oil the torque spec is higher I believe. But if you are still not sure then you can always call ARP and ask for the spec.

cre · 08-13-2011, 05:48 AM

75 ft lbs with moly and the threads MUST be chased. Torque in multiple passes 3 - 5 and if you encounter striction back off an eighth up to a quarter turn and resume. Each pass should go smoothly, if it stutters or jumps (striction or static friction) then it's not lubed well enough, it's binding on the threads or you're moving too slowly... It will usually result in false torque readings.

08-12-2011, 01:52 AM	#1
devsdad01 Stock Join Date: Jul 2010 Location: Il, USA Posts: 6	ARP head bolts help Can anyone tell me what I should tourqe the bolts down to on a 7MGTE? Keep in mind I am using BOLTS and not studs. Not wanting to go wild on this engine just replace the blown gasket with a mild upgrade in the bolts so I can add a little tourqe with confidence that they will hold and not have to go through this again any time soon. Thanks for the help.

08-13-2011, 05:48 AM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	75 ft lbs with moly and the threads MUST be chased. Torque in multiple passes 3 - 5 and if you encounter striction back off an eighth up to a quarter turn and resume. Each pass should go smoothly, if it stutters or jumps (striction or static friction) then it's not lubed well enough, it's binding on the threads or you're moving too slowly... It will usually result in false torque readings. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 08-13-2011 at 05:51 AM.

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08-12-2011, 01:56 AM	#2
907mge 20psi boost Join Date: Dec 2009 Location: Harrisburg Posts: 759	I think it is 75lbs. with moly lube. Didn't they come with a paper with the spec on it?

08-12-2011, 02:02 AM	#3
devsdad01 Stock Join Date: Jul 2010 Location: Il, USA Posts: 6	Came with the paper but it is in bad shape after shipping so not really readable lol. I was thinking 75 in three steps but wasn't sure and REALLY don't want to strip anything out.

08-12-2011, 10:28 PM	#4
907mge 20psi boost Join Date: Dec 2009 Location: Harrisburg Posts: 759	As long as you have the moly lube you should be fine with 75. I know when I put in the studs it was 90. But if you are using motor oil the torque spec is higher I believe. But if you are still not sure then you can always call ARP and ask for the spec.