head stud TQ specs?

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Jun 26, 2006 | 01:06 PM

Country Boy

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head stud TQ specs?

What torque specs are yall using for FI? I have 12 pt. ARP head studs and 6.0 MLS gaskets.

Jun 26, 2006 | 08:21 PM

chriswtx

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me too...

Jun 26, 2006 | 08:40 PM

smokinHawk

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are you using the lube or motor oil.
best to use the stock torque spec, though i tightened up mine a bit more, think it was about 80ft-lbs

Jun 26, 2006 | 08:43 PM

Inspector12

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Well ARP says 65 on all the 15mm and 27 on all the 10mm, but I usually go 80 on the 15 and 30 on the 10 mm though just what I do I have never had a real problem with it due to either the TQ spec or gaskets. Some others will chime in on there procedure though. I go up in 10 lb increments after 50 or so. I let them sit over night and re check them etc...

Jun 26, 2006 | 09:08 PM

Country Boy

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I went ahead and went to 75 with moly lube. I didnt know the 10mm was that much. Mine are at ~13lbs.

Jun 26, 2006 | 09:10 PM

crazykid

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On all the cars I do 35-55-75 and 25 on the 10mm

Jun 26, 2006 | 09:11 PM

Country Boy

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hummm... guess I better tighten the 10mms... lol I had them at 13lbs when I was H/C with no problems. Better safe than sorry

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Jun 27, 2006 | 06:43 AM

Country Boy

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On the TQ paper they said that the TQ spec is usually 75% of the fasteners yeild.

Jun 27, 2006 | 07:22 AM

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Slowhawk

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We ussually torque them to 80ft/lbs and 25lbs for the smaller ones with the ARP moly lube..

Jun 27, 2006 | 07:30 AM

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MiaSSmaro98

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guys were can u get like a book or a sheat the states all the tq ratings for every part in the engine?

Jun 27, 2006 | 07:46 AM

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bowtieman81

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Quote:

Originally Posted by Country Boy

On the TQ paper they said that the TQ spec is usually 75% of the fasteners yeild.

This is a fairly standard target for a good fastener. It helps to prevent overtorquing due to the many variables in bolted joints. Like I said, if you have a good or calibrated torque wrench, you could probably bump up the torque 10 ft-lbs. Yield point on the 15mm bolts would be about 86 ft-lbs.

Jun 27, 2006 | 08:08 AM

#13

Country Boy

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I may just leave mine at 75ft/lbs. I dont know if I have to take the rockers back off to get to the bolts again.

Jun 27, 2006 | 12:05 PM

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67Firebird455

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Yeah, I know if you have a deep socket, it'll hit the rocker brace, I snapped one of mine pulling the heads off, not paying attention while it was still in the car.