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Made in USA
Pro1 LS 12° As-Cast Rectangle Port Aluminum Cylinder Head [Bare]
InfoVehicle Info Needed
DARTPART NUMBER: 301-11060000J

Pro1 LS 12° As-Cast Rectangle Port Aluminum Cylinder Head [Bare]

$98198$1161.03You Save$179.05
2 left in stock
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285cc Intake Runner
Pro1 Rectangle Port Bare Cylinder Head
  • Jesel Rocker Arm Ready
  • Requires Professional Machining and Porting
  • Intake Runner: 285cc
  • Combustion Chamber: 66cc
  • Valve Angle: 12°
  • Cast Aluminum Alloy
  • Sold Individually

    Dart 11060000J Pro1 Rectangle Port Cylinder Head:

    • Recommended for GM Gen III LS7 compatible V8 engines with 4.125 in. and larger bores
    • Machined and drilled for Jesel rocker arms
    • Un-machined valve seats require professional machining
    • As-cast 285 cc intake ports, 104cc exhaust ports, and 66cc combustion chambers require professional porting and polishing
    • (6) Bolt per cylinder
    • Cast aluminum alloy
    • Sold individually

    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

    • Part TypeCylinder Head
    BrandDART
    Package Height6.8
    Package Width9.0
    Package Length22.5
    Weight31.68 PG
    Part CategoryPerformance Parts
    Cylinder Head MaterialAluminum
    Intake Port LocationStandard
    Exhaust Valves IncludedNo
    Engine Make/SizeGM LS7
    Intake Port ShapeRectangle
    Guideplates IncludedNo
    Cylinder Head FinishNatural
    Valve Seats MachinedYes
    Intake Valve Angle12
    Valve Seat MaterialDuctile iron
    FinishNatural
    Intake Port Dimensions2.430 in. H x 1.375 in. W
    Valve Springs IncludedNo
    UsageCompetition
    Valve Guides IncludedYes
    Cnc-Machined Intake RunnerNo
    Intake Valves IncludedNo
    Combustion Chamber StyleHeart
    QuantitySold individually
    Cylinder Head TypeLS7
    Valve Stem Seals IncludedNo
    Accessory Bolt Holes DrilledYes
    Exhaust Runner Volume (Cc)104
    Exhaust Port LocationStandard
    Valve Guide MaterialManganese bronze
    Combustion Chamber Volume (Cc)66
    Machined For O-RingNo
    PreparationRequires Professional Preparation (Bare)
    Exhaust Valve Angle12
    Rocker Arm Studs IncludedNo
    Cylinder Head StyleBare
    Valve Stem Diameter8 mm
    Exhaust Port Dimensions1.800 in. H x 1.600 in. W
    Part FitmentSemi Universal
    Valve Cover Mounting StyleCenterbolt
    Intake Runner Volume (Cc)285
    Cnc-Machined Exhaust RunnerNo
    Cnc-Machined Combustion ChamberNo
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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