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  1. #11
    imp0ster's Avatar
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    my head is going out for bronze guides rev valve cut in and surfacing. If there's any deviation he'll let me know

  2. #12
    rxpdoo's Avatar
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    awesome. I know some of the top tuners advising against these high torque values. the stock headgasket is embossed and squishing it down to such a constant force would be like and this is only an example... take a piece of card board and clamp it down. then have a look at it afterwards. the biggest indentation will be around the bolt holes. by no means is this all the way compairable to the our situationbut it gives you the idea of what is happening. maybe the cylinder heads material is strong enough. that would be great!

  3. #13
    Eastside Powersports Slow 91's Avatar
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    Anything less than 95 ftlbs will just blow head gaskets, more so on OEM head gaskets. Which is why I do not run oem gaskets anymore.

    Click image for larger version. 

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  4. #14
    Gus13letter's Avatar
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    ARP actually recommends 100. It was in the sheet that I got with my stud kit. It also had the ARP lube.

    http://arpinstructions.com/instructions/168-4201.pdf


  5. #15
    Faflux31's Avatar
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    Hello guys,
    I have received my ARP head stud kit this week. I think I have not the good 12 point socket to install the nuts.
    Is there someone who can tell me which tool is needed? I have not found this information in the Riva datasheet.
    What torque should I apply to screw the studs (hex) in the lower engine?
    Thanks a lot

  6. #16
    dsteinmann's Avatar
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    I think it was 9/16 12 point socket

  7. #17
    mibunkerking's Avatar
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    I honestly think the 100ft lbs arp recommends is too much. I installed them in the motor I built and during the first 1 hr it ripped the threads out of the block. I had the ski on the beach and was standing about 5ft away talking to a friend when there was an extremely audible ping. Dinomite was idling on his ski about 15 ft away and heard it over his ski. It starting leaking coolant after that from the headgasket. When I investigated why I found the studs had ripped the threads out in a perfect coil. I had to instal a helicoil and retorqued to 85ft lbs. rechecked 15 hours later no issues.

    Just my experience

  8. #18
    Site Admin Green Hulk's Avatar
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    95 ft lbs is all thats needed!
    Hand tighten the studs into the block... do not tighten them up!

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  10. #19
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Using a quality-accurate torque wrench is also key here!

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  12. #20
    blackvr's Avatar
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    85 lbs fonal and stock gaskets are just fine. Have run plenty o engines 30lbs plus on it. 95lbs starts to squash head. You need to install inserts to stop that if u have to torque more. If ur poppinv gaskets then ur either running to much timing, bad gas, or both. We run all high comp set ups on e85 and never once pop stock gasket.


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