LS1 ARP head bolt torque

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May 4, 2007 | 01:59 PM

FraggerCrue

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LS1 ARP head bolt torque

Can anyone tell me what the torque steps are for ARP head bolts on the LS1? I can't imagine it is 22lbs + 90* + 90* like it is for the TTY bolts. I would think the sequence is the same. I'd be glad for a link to a relevant post, but I did my search and didn't find anything, so now I'm asking.

May 4, 2007 | 03:01 PM

99blancoSS

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From: ST Helens, OR

call arp, thats what I did. I cant remember the setting they told me or I'd post them for you

May 4, 2007 | 03:14 PM

mr2guru

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No, no....

Torque in sequence, but max torque is 75ft/lbs with arp moly or 85ft/lbs with 30wt. oil.
I torque mine 45-60-70-80.

Some over torque to 80 with moly.

May 4, 2007 | 04:39 PM

davered00ss

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From: Plainfield, CT

ARp says 70 ft/lbs. Most people I know do 75ft/lbs with the ARP lube. The top smaller bolts are 24 ft/lbs I believe. It should say on a yellow piece of paper in the box.