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Thread: ARP Head Studs

  1. 18th September 2011, 09:00 PM #1
    Clarkey
    Clarkey is offline Master
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    ARP Head Studs

    ok guys cant find them on Ebay and they are not listed in the ARP catalogue so any suggestions
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  2. 18th September 2011, 09:08 PM #2
    Clarkey
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    found my own answer arp 124-4003 as used in buicks
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  3. 18th September 2011, 10:38 PM #3
    mattg Guest
    do ARP make manifold studs? might be stronger then the factory jobs.

    cheers matt
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  4. 18th September 2011, 11:15 PM #4
    Clarkey
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    No listing in the ARP catalogue but there are some listed on ebay
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  5. 19th September 2011, 10:27 AM #5
    jiri_j
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    I have seen them here:

    Discovery 2 V8 Cylinder Head Bolts at www.rimmerbros.co.uk

    what head gaskets are you about to install? Elring?

    Cheers
    Jiri
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  6. 19th September 2011, 11:41 AM #6
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    clubagreenie
    clubagreenie is offline TopicToaster
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    Just please follow the pre assembly tensioning/stretch sequence. And repeat as it says. If doing in car the back couple of studs can't be screwed in until after the heads are fitted but it's not an issue. Also when fitting do not over-tighten into the block, just use the allen key and one finger tension is all it needs.
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  7. 19th September 2011, 12:12 PM #7
    It'sNotWorthComplaining! Guest
    Why head studs, do people continually want to keep pulling the heads off?
    Surely using stretch bolts the job should last 100,000's of kms if done correctly.

    I have never heard of a vehicle that constantly needs it's heads pulled off, is this just a land rover trait?
    Surely nissan and toyota owners don't pull their heads off as much as land rover owners?
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  8. 19th September 2011, 03:09 PM #8
    Clarkey
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    I think i will go the studs route, simply an improvement. Funny thing is i have had head bolt problems before on other vehicles, ford, m/benz and toyota even with mono torque gasket and following correct tightening sequence etc, and yes i do have a torque angle guage and have had my torque wrench calibrated in the past.

    Also note that the ARP stud kit is cheapest on ebay out of the states by a good margin over what ive seen it for from the UK
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  9. 19th September 2011, 03:11 PM #9
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    clubagreenie
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    The TTY (torque to yield) bolts in both Toyos and LR are notoriously bad. I bought a set to test (as I had already had enough experience in toyo V8 heads/TTY bolts to know not to use). The variation in both stretch length and point of stretch was alarming as was the tension required to release. They should stretch somewhere just under the head, usually in a spot that is relieved and you can see post use.

    It's not about how often you remove the heads but how reliably they clamp.

    Mono torque gaskets in a toyo are asking for trouble. They have enough head issues without putting up another barrier.
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