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ARP Head Studs w/12-Point Nuts (U/Cut Studs) Porshe 2.0L-3.8L Air Cooled Engines - 911 & 930 Turbo

ARP 204-4206

070-204-4206

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Estimated to ship directly from the manufacturer on 08/31/18
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ARP Head Studs w/12-Point Nuts (U/Cut Studs) Porshe 2.0L-3.8L Air Cooled Engines - 911 & 930 Turbo $548.99
Head Studs w/12-Point Nuts (U/Cut Studs)
  • Porshe 2.0L-3.8L Air Cooled Engines - 911 & 930 Turbo

  • Specifications:

    Quantity
    Sold as a kit
    Fastener Finish
    Black oxide
    Fastener Material
    8740 chromoly
    Washers Included
    Yes
    Fastener Style
    Stud
    Head Style
    12-point
    Cut to Fit
    No
    Undercut Stud
    No
    Manufacturer's Part Number:
    204-4206
    Shipping Weight:
    6.8
    Package Height:
    18.75
    Package Depth:
    2
    Package Width:
    9.5

    ARP's Undercut Head Studs are manufactured from premium 8740 chrome moly steel and heat treated to 190,000 psi. These studs are thread rolled after the heat treating process, which vastly improves their fatigue tolerance. Undercutting of the stud equalizes the "stretch", which makes for a more consistent clamping force; and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing. Included are 12-point nuts and parallel ground washers. Also available are Undercut Head Studs With Hex Nuts.

    Features:

    • Premium 8740 chrome moly steel
    • 190,000 psi tensile strength
    • Heat treated and thread rolled
    • More consistent clamping force
    • Helps prevent blown head gaskets
    • Includes 12-point nuts and parallel ground washers
    • For most domestic and import applications

    Does ARP 204-4206 fit your vehicle?

    Narrow Results

    1991-1992 PORSCHE 911

    • EngineType: ALL
    • SubModel: TURBO

    1989 PORSCHE 911

    • EngineType: ALL
    • SubModel: SPEEDSTER

    1987 PORSCHE 911

    • EngineType: ALL
    • SubModel: BASE

    1984-1985 PORSCHE 911

    • EngineType: ALL
    • SubModel: ALL

    1982 PORSCHE 911

    • EngineType: ALL
    • SubModel: BASE

    1978-1979 PORSCHE 930

    • EngineType: ALL
    • SubModel: BASE

    1986-1989 PORSCHE 911

    • EngineType: ALL
    • SubModel: CARRERA
    Some parts are not legal for use in California or other states with similar laws / regulations