LS-Series LS3 Cylinder Head Kit, Assembled
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CHEVROLET PERFORMANCEPART NUMBER: 809-12675871K

LS-Series LS3 Cylinder Head Kit, Assembled

$2,52996
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LS3 Aluminum Cylinder Heads
LS-Series LS3 Cylinder Head Kit
  • Assembled
    Includes:
  • Cylinder Heads
  • Head Gaskets
  • Head Bolts
  • Valve Cover Gaskets

    Kit Includes:

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • The LS3 Aluminum Cylinder Heads are stock replacement LS3/L92 heads manufactured from aluminum alloy and are available as bare castings to add your own components or fully assembled with intake and exhaust valves, valve stem seals, spring retainers, valve springs and valve locks. These heads can be used to replace worn or damaged units on your LS3 engine or as a performance upgrade on any LS engine with a 4" or larger bore!

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    Features:

    • Manufactured from 319-T5 aluminum alloy
    • As-cast L92 style 260cc intake ports
    • 2.165" hollow stem intake valves
    • 1.59" solid stem exhaust valves
    • 15 degree valve angle
    • .550" max valve lift
    • D-shaped exhaust ports
    • As-cast 68.4cc combustion chambers
    • 14mm, 5/8" hex, 3/4" reach, taper-seat Angled spark plug
    • Bolt-down-type rocker arms
    • Center-bolt valve cover hold-downs
    • Fits any LS family engine with 4.00" bore or larger
      LS3 Cylinder Head Flow Chart
      Valve LiftIntake FlowExhaust Flow
      .200151111
      .300208152
      .400256174
      .500294183
      .600316189
    Part TypeCylinder Heads Easy Kit
    Product LineChevrolet Performance LS3 Aluminum Cylinder Heads
    BrandCHEVROLET PERFORMANCE
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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