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ARP Head Stud Kit 11mm

MODEL # ARP 260-4701

$209.49


  • Q: Probably dumb  Mike8015 days ago

    Probably dumb but I’m currently in the middle of getting everything together for a frankenmotor ej25 and was hoping that you could tell me if these would work for said build? (Yes I read the other questions about the regular model fit but this is a bit irregular) pic of my ugly multi color gc because it gave me the option.
    • 0 of 0 people found the following answer helpful

      A:  Without knowing the specifics of your build we cannot confirm fitment. We would recommend reaching out to one of our Customer Service Representatives in regards to your fitment question.

      Jared A. @ RallySport Direct 23 hours ago  
        
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  • Q: Nuts  rhd_eli7 months ago

    These have new nuts pictured in the third picture if I’m not mistaken. I know the question has been asked, but it was also answered saying it only comes with what is pictured. So do they come with new nuts or not? And if not, where would one find new nuts for these?
    • 5 of 5 people found the following answer helpful

      A:  The answer, to end all answers, to end all speculation, TO BE THE BEARER OF TRUTH!! These do come with new nuts!

      Megan L. @ RallySport Direct 7 months ago  
        
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  • Q: Nuts, washers?  aploofy4835310 months ago

    What are the options for getting nuts and washers with these bolts? I dont see them listed anywhere sepperately. Are we forced to buy the Cosworth kit that apparently comes with the nuts and washers? At twice the cost?
    • 0 of 0 people found the following answer helpful

      A:  These do come with new washers just not nuts. Unfortunately ARP doesn't sell those separately unless you buy the 625+.

      Tyler A. @ RallySport Direct 10 months ago  
        
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  • Q: Arp head stud kit  aploofy4835310 months ago

    Do these come with nuts and washers?
    • 0 of 0 people found the following answer helpful

      A:  They do not. They only come with what is pictured.

      Tyler A. @ RallySport Direct 10 months ago  
        
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    • 0 of 0 people found the following answer helpful

      A:  3rd photo, top left bag, just above the grease. Aren't those the nuts? :/

      GS
        
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    • 0 of 0 people found the following answer helpful

      A:  You guys might want to relook at this product. I ordered these from a different website because they stated they came with nuts and washer. They indeed did. Their ARP part number is the same one you list. Just trying to help I tried twice to buy them from rally direct but had to go else where.

      aploofy48353
        
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  • Q: What is the maximum engine HP these studs can be used safely?   Lagg-Alot10 months ago

    I have 430whp. I think I would be ok with these studs. But If I add more power in near future, what would you recommend is the highest whp before should I go with a stronger stud?
    • 0 of 0 people found the following answer helpful

      A:  Anything more and I would recommend going with the 625+.

      Tyler G.
        
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  • Q: Are these right for me  kcrew78671788212 months ago

    Running an iag stage 2 block, dom 3.5xtr 10cm hotside, 93 and meth are these good for me? Not many build threads online with this turbo
  • Q: Fitment  turbomacncheese12 months ago

    Why does the fitment say they won't fit a Saab 92-x Aero, but they'll fit a 2006 WRX? Same engine...
  • Q: Head Studs  CSautoSVC1 year ago

    On a mild 2017 STI build with a FP Black making around 500whp will these hold okay with OEM head gaskets?
  • Q: 05 sti rebuild  sob3ygrime631862 years ago

    is there any reason these wouldn't fit my 05 sti ej257 with b25 rebuilt heads and npr 100mm pistons? with stock cams. just wanna confirm fitment before i buy.
  • Q: Torque specs?  dsfi10640612 years ago

    I was wondering what the torque specs are for these studs. I'm seeing different specs all over the internet. Some say not over 85 ft lbs and some say up to 95 ft lbs. I'm aware of the sequence, but what is the maximum torque value?
    • 0 of 0 people found the following answer helpful

      A:  Following the manufacturers recommended torque sequence, tighten the nuts in 3 equal steps to 90 ft lbs.

      Chris W. @ RallySport Direct 2 years ago  
        
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  • Q: HP strength?  NightwingSTI3 years ago

    compared to the custom age 625+ kit, what are differences in strength / hp capacity in this set? Looking for a max 400awhp build, with as much reliability as possible.
    • 0 of 0 people found the following answer helpful

      A:  The 625+ will have a higher tensile strength but there is no specific horsepower figure. For a 400whp build these standard studs should be plenty and I don't believe we have ever seen a failure in head studs at that power level.

      Nick S. @ RallySport Direct 3 years ago  
        
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  • Q: HP strength?  NightwingSTI3 years ago

    compared to the custom age 625+ kit, what are differences in strength / hp capacity in this set? Looking for a max 400awhp build, with as much reliability as possible.
    • 0 of 0 people found the following answer helpful

      A:  The 625+ will have a higher tensile strength but there is no specific horsepower figure. For a 400whp build these standard studs should be plenty and I don't believe we have ever seen a failure in head studs at that power level.

      Nick S. @ RallySport Direct 3 years ago  
        
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  • Q: Will this fit for JDM GDB STI EJ20 model?  Michaeltanghk3 years ago

    Will this fit for JDM GDB STI EJ20 model?
    • 0 of 0 people found the following answer helpful

      A:  These studs should fit all EJ20 & EJ25 engines, however we cannot guarantee fitment on engines from outside the USA.

      Zach G. @ RallySport Direct 3 years ago  
        
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    • 0 of 0 people found the following answer helpful

      A:  Yes it will work. Guaranteed

      Padilla12
        
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  • Q: Torque Specs  fistrzac0004 years ago

    do you know the tightening specs for the studs?
    • 0 of 0 people found the following answer helpful

      A:  Install the studs hand tight into the block and clean/chase the threads in the block if necessary. Following the manufacturer's recommended torque sequence, tighten the nuts in three equal steps to 90 ft lbs with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.

      Zach G. @ RallySport Direct 4 years ago  
        
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  • Q: nuts?  spawkum4 years ago

    Do these come with nuts? If not do you guys sell them?
  • Q: What exactly are these for?  chukb20125 years ago

    I am looking to replace my oem headbolts, and i just want the studs / bolts. are these a direct replacement? how come both sides are open unlike in the bigger arp kit where they have the stud on them?
    • 0 of 0 people found the following answer helpful

      A:  These studs hold the heads to the block and will be a direct replacement for the stock head bolts. These are studs instead of bolts and that is why they do not have a bolt head on them.

      Zach G. @ RallySport Direct 5 years ago  
        
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  • Q: One time use?  Torey A.5 years ago

    Is it ok to reuse these studs/bolts?
    • 2 of 2 people found the following answer helpful

      A:  There is no problem to re-use them but you will want to check the stretch on the bolt after each use to ensure its not beyond its plastic deformation limit of the alloy.

      Kirill C. @ RallySport Direct 5 years ago  
        
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