Product Summary

1.20" Overall Height, .55" Outside Diameter, Steel

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    Key Specs

    MFG. Part #300-8243
    BrandARP
    Thread Pitch3/8"
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    ARP 300-8243 Details

    These replacement rocker arm nut kits are made for stamped steel rockers. When rebuilding an engine, it is recommended to replace the rocker studs along with the rocker ball and nuts.

    ARP Adjustable 3/8 Inch Rocker Nut Kit

    • Exclusive 12 point head
    • Heat-treated premium grade A 8740 chromoly steel
    • 190,000 psi tensile strength
    • Precision machined threads
    • 1.200" length
    • 3/8-24 thread size
    • .550 body diameter
    • 16 piece pack
    • Includes Perma-Loc - 12 point head with special shouldered "stop" to hold wrench. Eliminates need for special adjusting tools.

    ARP 300-8243 Specifications

    KEY SPECS
    MFG. Part #300-8243
    BrandARP
    Thread Pitch3/8"
    GENERAL
    Overall Height1.20"
    Outside Diameter.55"
    Material TypeSteel
    FinishBlack Oxide
    Sold in QuantityKit
    GTIN Code672036012076
    ColorBlack

    Questions & Answers

    2 Questions • 2 Answers

    are these a poly lock doesn't really specify in listing unless I'm reading it wrong

    by dennis

    • 11 years ago

    1 answer

    What is the length of the 0.550" diameter? I am having some trouble with the hex on my current locks and was looking for something that had a longer length at the 0.550" diameter. I was wondering how long that diameter is on these locks to see if they will fix my issue.

    by 12Mod

    • 11 years ago

    1 answer

    2 of 2 questions shown

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