Dart Pro1 LS Cylinder Heads 11071142 Head, Pro 1 LS, Aluminum, Assembled, 68cc Chamber, 250cc Intake Runner, Chevy, 5.7L LS1, 6.0L LS1, Each
Dart Pro1 LS Cylinder Heads 11071142 Head, Pro 1 LS, Aluminum, Assembled, 68cc Chamber, 250cc Intake Runner, Chevy, 5.7L LS1, 6.0L LS1, Each
A$4,757.54
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Description
Dart Pro1 aluminum cylinder heads for GM LS Series small block V8 engines take performance to the next level. They're available bare or assembled, in both cathedral port and square port designs, for applications ranging from street cars and trucks to all-out racing vehicles. Pro1 LS high performance cylinder heads have better airflow, more efficient combustion chambers, and more user-friendly features than production LS castings. Offered in a variety of valve sizes and port volumes with manganese bronze valve guides, they include multi-angle intake seats and radiused exhaust seats to enhance airflow. All Dart Pro1 LS cylinder heads retain stock valve angles, stock valve locations, and stock accessory mounting holes to make installation easy. Virtually everything else has improved!
Part Type
Cylinder Heads
Specifications
- Product Attributes - Brand
- Dart
- Product Attributes - Manufacturer's Part Number
- 11071142
- Product Attributes - Part Type
- Cylinder Heads
- Product Attributes - Product Line
- Dart Pro1 LS Cylinder Heads
- Product Attributes - UPC
- 807051003789
- Product Attributes - Combustion Chamber Volume (cc)
- 68
- Product Attributes - Intake Runner Volume (cc)
- 250cc
- Product Attributes - Exhaust Runner Volume (cc)
- 94cc
- Product Attributes - Cylinder Head Style
- Assembled
- Product Attributes - Cylinder Head Material
- Cast aluminum
- Product Attributes - Camshaft Style
- Hydraulic roller
- Product Attributes - Intake Port Shape
- Cathedral
- Product Attributes - Intake Valve Diameter (in.)
- 2.080 in.
- Product Attributes - CNC-Machined Combustion Chamber
- Yes
- Product Attributes - CNC-Machined Intake Runner
- Yes
- Product Attributes - CNC-Machined Exhaust Runner
- Yes
- Product Attributes - Combustion Chamber Style
- Heart
- Product Attributes - Intake Port Location
- Standard
- Product Attributes - Exhaust Port Shape
- Oval
- Product Attributes - Exhaust Port Location
- Standard
- Product Attributes - Intake Valves Included
- Yes
- Product Attributes - Exhaust Valves Included
- Yes
- Product Attributes - Exhaust Valve Diameter (in.)
- 1.600 in.
- Product Attributes - Valve Springs Included
- Yes
- Product Attributes - Maximum Valve Lift (in.)
- 0.625 in.
- Product Attributes - Outside Diameter of Outer Spring (in.)
- 1.290 in.
- Product Attributes - Damper Spring Included
- No
- Product Attributes - Number of Springs Per Valve
- Single
- Product Attributes - Retainers Included
- Yes
- Product Attributes - Retainer Material
- Titanium
- Product Attributes - Locks Included
- Yes
- Product Attributes - Valve Stem Seals Included
- Yes
- Product Attributes - Rocker Arm Studs Included
- No
- Product Attributes - Rocker Arms Included
- No
- Product Attributes - Rocker Arm Nuts Included
- No
- Product Attributes - Guideplates Included
- No
- Product Attributes - Valve Cover Mounting Style
- Centerbolt
- Product Attributes - Accessory Bolt Holes Drilled
- Yes
- Product Attributes - Intake Valve Angle
- 15
- Product Attributes - Exhaust Valve Angle
- 15
- Product Attributes - Valve Guides Included
- Yes
- Product Attributes - Valve Guide Material
- Manganese bronze
- Product Attributes - Valve Seats Machined
- Yes
- Product Attributes - Valve Seat Machine Style
- 5-angle intake/3-angle exhaust
- Product Attributes - Valve Seat Material
- Powdered metal
- Product Attributes - Cylinder Head Color
- Natural
- Product Attributes - Steam Holes Drilled
- No
- Product Attributes - Machined for O-Ring
- No
- Product Attributes - Heat Crossover
- No
- Product Attributes - Remanufactured
- No
- Product Attributes - Quantity
- Sold individually.
- Product Attributes - Notes
- Recommended for 4 bolt LS engines with 4.000 in. or larger bores for maximum competition, drag racing, circle track, over 7,000 RPM and heavy duty applications. Features stock LS1 valve angles, valve locations and accessory mounting holes. For use with hydraulic roller camshaft.
Reference Information
| Brand Name/s | Dart |
|---|---|
| StreetFX SKU | drt11071142 |
| SFX Item ID | 5089086 |
| Supplier Item Code | 5089086 |
| Manufacturer SKU | 11071142 |
| Manufacturer UPC | 807051003789 |
| Alternative References | Pro1, 68cc, 250cc, 5.7L, LS1, 6.0L |
Compatibility
| Application Data |
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