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- Aluminum 15 Degree
- Bare Casting
- Full Porting
- CNC Machine Valve Bowls
- CNC Combustion Chambers
- CNC Full Intake Ports
- CNC Full Exhaust Ports
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.
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The Dart Machine 15 Degree Small Block Chevy Cylinder Heads offer a dramatic performance improvement over conventional 23 Degree designs.The Dart engineering staff reduced the valve angle, reshaped the intake ports and optimized the combustion chambers to produce a significant increase in both airflow and combustion efficiency!Features:
- Aluminum Alloy: C355-T61
- Intake Port Volume: 284cc
- Chamber Volume: 48cc
- Angle Plug Design
- Intake Valve Size: 2.150 or 2.180
- Exhaust Valve Size: 1.600 or 1.625
- Recommended Intake Manifold: 301-42711000
- Sold Individually (Bare or Assembled)