don't be scared of pro comp/ebay head studs
Every time my brother comes to visit , he says "shhhh, I think I just heard another one of your China studs snapping....."
I just wish ARP would lower their price. id bet they could sell a lot more and maintain the same profit margin.
I torqued my pro comps to 75. Lost a head gasket due to a poor surfacing job on my heads.
Next time around did the same 75, put two complete heat/cool cycles and retorqued one stud at a time loosening and tightening. I took them to 78.
I didn't note any that seemed loose.
I'd sure have preferred ARP. But the pricing pissed me off.
I believe Thompson Motorsports makes studs? They are rarely mentioned.
Ron
I just wish ARP would lower their price. id bet they could sell a lot more and maintain the same profit margin.
I torqued my pro comps to 75. Lost a head gasket due to a poor surfacing job on my heads.
Next time around did the same 75, put two complete heat/cool cycles and retorqued one stud at a time loosening and tightening. I took them to 78.
I didn't note any that seemed loose.
I'd sure have preferred ARP. But the pricing pissed me off.
I believe Thompson Motorsports makes studs? They are rarely mentioned.
Ron
Was hoping I would have the same luck. One head went good, the stud on the second head snapped before I got to 80ft/lbs. Picked up one replacement arp stud and will go back at it once it comes in. LQ4, 317s, LS9 gaskets and plenty of arp lube.
I'm about to put my ls1 back together. Nothing too radical...may go with a 224/224 14 to 16 lsa and that's about it. N/A engine. Do you think this head studs torqued to 70 will be safe? I expect they may not be as good as arp but should be better than GM bolts. So kind of a trade off? I like the idea of more accurate torquing as compared to bolts. Thoughts anyone?
I'm about to put my ls1 back together. Nothing too radical...may go with a 224/224 14 to 16 lsa and that's about it. N/A engine. Do you think this head studs torqued to 70 will be safe? I expect they may not be as good as arp but should be better than GM bolts. So kind of a trade off? I like the idea of more accurate torquing as compared to bolts. Thoughts anyone?
I had a leak around the rear of the drivers use head. I noticed as I was loosening the bolts they were definitely not at the same torque level in that area. Does that happen a lot? The engine had about 150k miles on it.
The bolts don't go in blind. They pertrude into the cooling jacket so if thread sealer isn't used I could see it leaking around a bolt. As far as the torque values being different....I haven't experienced that on a Ls when pulling the heads, but mine have all had the heads off prior to me owning them.
The bolts don't go in blind. They pertrude into the cooling jacket so if thread sealer isn't used I could see it leaking around a bolt. As far as the torque values being different....I haven't experienced that on a Ls when pulling the heads, but mine have all had the heads off prior to me owning them.
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Verdad Gallardo I was, but it's my mistake. I used sealant on the bottom row on both of mine lol. Waste of time smh. I guess I'm still used to sbf stuff.
Problem with the TTY bolts is a bolt by design loses alot of it's clamping force due to torsional/twisting forces when torqued.
Even though the TTY bolts have almost identical tensional strength as the china studs, a stud is a better design by nature and will provide better clamping force at the same torque value.
...or so I've heard.
Even though the TTY bolts have almost identical tensional strength as the china studs, a stud is a better design by nature and will provide better clamping force at the same torque value.
...or so I've heard.
Problem with the TTY bolts is a bolt by design loses alot of it's clamping force due to torsional/twisting forces when torqued.
Even though the TTY bolts have almost identical tensional strength as the china studs, a stud is a better design by nature and will provide better clamping force at the same torque value.
...or so I've heard.
Even though the TTY bolts have almost identical tensional strength as the china studs, a stud is a better design by nature and will provide better clamping force at the same torque value.
...or so I've heard.