Is there ever a need to replace ARP headstuds? Can you torque them down as many times as you'd like w/out worrying about stretching or ruining them?

Is there a need to upgrade to the H11/L19 headstuds if running around 600whp and 35+psi of boost?

 

I would upgrade to the racing studs if your running that amount of boost, just to be safe, but its probably not necessary.

 

As long as the head bolts are not Torque to Yeild (Torque the bolt down then tighten them another 25 degrees or whatever) you should be able to reuse them. I would also recommend race studs with that much boost.

 

According to Marco at Magnus Motorsports - Regular ARP head studs are good for 700 HP.

Anything past that he recommended the L19's.



-Bink

 

not just the HP you have to worry about, its the boost especially..

 

i would run new studs to be on the safe side...

When i built my block i have the regular ARPs from before and only torqued once when i put cams but i didnt use them again...
Went with L19s to be on the safe side!

 

I have a set that has been torqued down twice now and the AMS race head is about to go on....for a few extra bucks and for piece of mind i'm going to replace them. I don't know whether or not to get the "RACE" studs or regular ARP studs?

 

fixed.

 

I'd do the L-19's at your level for sure

 

going with the L-19's...everyone is out of stock on them right now...

 

The L19 sounds like the safer idea to me. Good luck finding them.

 

now that i'm thinking I may throw a rod before I lift the head with the reg ARP headstuds....what do you guys think? I'm running Eagle H-beam rods

 

What are they rated at? U can just do it all at one time(Rods and studs) so you dont throw a rod and have to rebuild it all.

 

why not get the as i call them middle of the line studs. the arp "undercut" head studs. stronger then reg and not as strong but close to l19



i bought them from Co_04 on these forums

 

if your boost is over 30psi its probobly a good idea to get ARP, just so it doesnt blow when your having a good time driving around