ARP's with Cometics?
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FormerVendor
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ARP's with Cometics?
I've heard rumors of guys torquing their ARP head bolts 10-15 ft./lbs. more then what ARP recommends when they are using Cometic head gaskets to help prevent leakage. Any truth to this or do you guys just torque to what ARP recommends? The info I received from ARP said final toque specs are 70 ft./lbs. on the 11mm bolts and 23 ft./lbs. on the 8mm bolts using moly lube. Should I just go by these numbers or something else? Thanks for any help!
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Funny I saw this thread, I just posted the same thing over on pt.net
http://www.performancetrucks.net/for....php?p=3620516
My first time around I went 90ft-lb (15 over for the extra sealing, and 5 over for using 20-50 oil instead of moly lube). I've seen as much as 13 psi on my motor without any problems so far. I think I'll probably do close to the same this time too, but I'm gonna see what everyone says. I'll keep an eye on both threads.
http://www.performancetrucks.net/for....php?p=3620516
My first time around I went 90ft-lb (15 over for the extra sealing, and 5 over for using 20-50 oil instead of moly lube). I've seen as much as 13 psi on my motor without any problems so far. I think I'll probably do close to the same this time too, but I'm gonna see what everyone says. I'll keep an eye on both threads.
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Originally Posted by BriancWS6
I didnt even coat them with the copper spray. It's been ~8k since then, all is well I had the deck SUPER clean though, I am sure that helps, or maybe I'm just lucky