Product Summary

383, 400, 413, 426 Wedge, 440, Aluminum, Natural

    Key Specs

    Cylinder Head StyleAssembled
    Material TypeAluminum
    Combustion Chamber Volume75cc
    Intake Runner Volume290cc

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    For B and RB big block Chrysler. Intake ports raised 0.650 inched for improved flow. Exhaust flange extended 0.950 inches. Available bare or with head including valves.
    • For B and RB Big Block Chrysler
    • Intake Ports Raised 0.650 in. For Improved Flow
    • Exhaust Ports Raised 0.250 in. For Improved Flow
    • Exhaust Flange Extended 0.950 in.
    • Head Includes Valves


    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


    Cylinder Head StyleAssembled
    Material TypeAluminum
    Combustion Chamber Volume75cc
    Intake Runner Volume290cc
    Exhaust Runner Volume100cc
    Combustion Chamber Volume Range70cc - 79cc
    Intake Runner Volume Range290cc - 299cc
    Exhaust Runner Volume Range100cc - 109cc
    CNC-Machined RunnersNo
    CNC-Machined Combustion ChamberNo
    Intake Port ShapeRectangle
    Intake Port LocationRaised
    Exhaust Port ShapeRectangle
    Exhaust Port LocationRaised
    Intake Valve Diameter2.2"
    Intake Valves IncludedYes
    Intake Valve Angle15
    Exhaust Valve Diameter1.81"
    Exhaust Valves IncludedYes
    Valve Spring IncludedNo
    Damper Spring IncludedNo
    Machined for O-RingNo
    Valve Seat Machine Style3-angle
    Valve Seats MachinedYes
    Valve Seat MaterialDuctile Iron
    Valve Stem Seals IncludedYes
    Valve Stem Seal TypePositive Stop
    Valve Guides IncludedYes
    Valve Guide MaterialManganese Bronze
    Locks IncludedNo
    Retainers IncludedNo
    Guideplates IncludedNo
    Rocker Arms IncludedNo
    Rocker Arm Studs IncludedNo
    Rocker Arm Nuts IncludedNo
    Oiling StyleThrough Head
    Heat CrossoverNo
    Steam Holes DrilledNo
    Accessory Bolt Holes DrilledYes
    NotesUses 14mm spark plugs with 3/4" reach, and flat gasket seals
    Sold in QuantityEach
    GTIN Code085347779499