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![Pro1 LS 12° CNC Ported Rectangle Port Aluminum Cylinder Head [Bare]](https://www.jegs.com/images/mini_750/300/301/301-11061080.jpg)
Vehicle Info NeededDARTPART NUMBER: 301-11061080
Pro1 LS 12° CNC Ported Rectangle Port Aluminum Cylinder Head [Bare]
$1,98074
Ships on 01/15/2027
Lowest Price Guarantee285cc Intake Runner
Pro1 CNC Rectangle Port Bare Cylinder HeadOEM Style Rocker Arm Ready Seats Machined for: 2.200 in. Intake/1.625 in. Exhaust Valves Intake Runner: 285cc Combustion Chamber: 66cc Valve Angle: 12° Cast Aluminum Alloy Sold Individually
Dart 11061080 Pro1 CNC Ported 285cc Bare Aluminum Cylinder Head:
- Recommended for GM Gen III LS7 compatible V8 engines with 4.125 in. and larger bores
- Includes Dart rocker bar for OEM style rocker arms
- CNC ported 285 cc intake ports, 104cc exhaust ports, and 66cc combustion chambers provide superior flow
- Valve seats machined for 2.200 in. intake and 1.625 in. exhaust valves
- (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
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 Seat Machine StyleMulti-Angle
Valve Guides IncludedYes
Cnc-Machined Intake RunnerYes
Intake Valves IncludedNo
Combustion Chamber StyleHeart
QuantitySold individually
Cylinder Head TypeLS7
Valve Stem Seals IncludedNo
Intake Valve Diameter2.2 in (55.88 mm)
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 RunnerYes
Cnc-Machined Combustion ChamberYes
Exhaust Valve Diameter1.625 in (41.275 mm)
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
