ARP Head Bolt Part # & Torquing Questions
ARP Head Bolt Part # & Torquing Questions
I had them saved on my summit wish list, but when I went to move them into my cart I accidently deleted them.
I just want the bolts, not studs and what ones I am suppost to get.
I thought they were these, but I can't remember now http://store.summitracing.com/partde...1&autoview=sku
Or should I get the 12 point ones http://store.summitracing.com/partde...1&autoview=sku
And one more thing, I did some searching and found that the torque specs and how to properly "break in" the bolts had a few different answers.
I don't have my old head gaskets and I don't want to ruin my new ones by torquing and loosening and retorquing the bolts, but whats the proper way to torque these bolts down for the first time. I aslo heard to torgue them to 22 #s, then 44 #s, then 65 #s for the final torque.
Please let me know
I just want the bolts, not studs and what ones I am suppost to get.
I thought they were these, but I can't remember now http://store.summitracing.com/partde...1&autoview=sku
Or should I get the 12 point ones http://store.summitracing.com/partde...1&autoview=sku
And one more thing, I did some searching and found that the torque specs and how to properly "break in" the bolts had a few different answers.
I don't have my old head gaskets and I don't want to ruin my new ones by torquing and loosening and retorquing the bolts, but whats the proper way to torque these bolts down for the first time. I aslo heard to torgue them to 22 #s, then 44 #s, then 65 #s for the final torque.
Please let me know
Get the first ones, the hex style.
Your almost correct on the torque specs, final is 75. And make sure you do it in a circle moving from the center out-word clockwise.
No need to "break-in" these babes .. just torque and go... depending on the abuse and your preference, some say to go back after a few heat cycles to re-check torque.. but i've never had an issue with ARP bolts and Fel-pro MLS gaskets. Even with ~10psi of boost
Your almost correct on the torque specs, final is 75. And make sure you do it in a circle moving from the center out-word clockwise.
No need to "break-in" these babes .. just torque and go... depending on the abuse and your preference, some say to go back after a few heat cycles to re-check torque.. but i've never had an issue with ARP bolts and Fel-pro MLS gaskets. Even with ~10psi of boost
Get the first ones, the hex style.
Your almost correct on the torque specs, final is 75. And make sure you do it in a circle moving from the center out-word clockwise.
No need to "break-in" these babes .. just torque and go... depending on the abuse and your preference, some say to go back after a few heat cycles to re-check torque.. but i've never had an issue with ARP bolts and Fel-pro MLS gaskets. Even with ~10psi of boost
Your almost correct on the torque specs, final is 75. And make sure you do it in a circle moving from the center out-word clockwise.
No need to "break-in" these babes .. just torque and go... depending on the abuse and your preference, some say to go back after a few heat cycles to re-check torque.. but i've never had an issue with ARP bolts and Fel-pro MLS gaskets. Even with ~10psi of boost

I'm using Fel-Pro gaskets and am planning on using the ARP moly Lube, and ARP thread sealer to be safe on the torque specs.Thanks again
More important is to make sure to clean out threads in block with a tap all the way down, blow out grit and oil with brake clean, then spotless clean and dry with air.
Oh... and pony up for the ARP head studs, they are worth the cost, and only require 50 ft lbs total.
Oh... and pony up for the ARP head studs, they are worth the cost, and only require 50 ft lbs total.
More important is to make sure to clean out threads in block with a tap all the way down, blow out grit and oil with brake clean, then spotless clean and dry with air.
Oh... and pony up for the ARP head studs, they are worth the cost, and only require 50 ft lbs total.
Oh... and pony up for the ARP head studs, they are worth the cost, and only require 50 ft lbs total.
And one more thing, I did some searching and found that the torque specs and how to properly "break in" the bolts had a few different answers.
I don't have my old head gaskets and I don't want to ruin my new ones by torquing and loosening and retorquing the bolts, but whats the proper way to torque these bolts down for the first time. I aslo heard to torgue them to 22 #s, then 44 #s, then 65 #s for the final torque.
Please let me know
I don't have my old head gaskets and I don't want to ruin my new ones by torquing and loosening and retorquing the bolts, but whats the proper way to torque these bolts down for the first time. I aslo heard to torgue them to 22 #s, then 44 #s, then 65 #s for the final torque.
Please let me know
Last edited by SweetZRag; Apr 16, 2007 at 04:21 PM.
Yeah, but I don't wnt to ruin my new head gaskets by loosening and retorquing my bolts. Can I just tighten them down in stages to break them in? Like 22#s, 45#s, then 65#s?
Use an old gasket,buff the new threads on the bolts(with wire brush on a bench grinder),run a tap in all bolt holes,then run in and out 3 times to seat threads to each other.
Put lube/sealer on bolts and use ARP instructions.
Put lube/sealer on bolts and use ARP instructions.
I did what you are suggesting. I am just telling you what ARP recommends. They explain the theory behind why they recommend this. If I get some time, I'll post part of their article. There is some interesting detail about what causes bolts to break.
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