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Chevrolet Performance LSX-DR Cylinder Head with Intake/Exhaust Valves

Chevrolet Performance 19259048
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Product images may differ from actual product appearance.

809-19259048

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Estimated to ship on 07/23/18
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Chevrolet Performance LSX-DR Cylinder Head with Intake/Exhaust Valves $4,354.32
LSX-DR Cylinder Head with Intake/Exhaust Valves
  • 313cc CNC'd LSX-DR Rectangle Intake Port Design
  • 50cc CNC'd Combustion Chamber
  • 2.280'' Int / 1.620'' Exh Valves
  • Cylinder Head and Valves (Springs not included)
  • Each

  • Specifications:

    Manufacturer's Part Number:
    19259048

    Capable of over 900 naturally aspirated horsepower!

    This is the cylinder head that Chevrolet Performance engineers designed for the 770hp LSX454R engine. These LSX-DR (Drag Racing) 11-degree, six-bolt aluminum heads feature raised-runner designs for improved airflow that supports sustained high-rpm performance. Intake port configuration is similar to the competition-derived C5R head, but the ports are raised an amazing 10mm and the intake manifold bolt pattern is spread to accommodate additional port configurations.

    Specifications:
  • Fully CNC ported
  • 356-T6 aluminum racing head
  • Valve guides and seats installed
  • 5/8'' thick deck
  • LSX-DR rectangle intake port design - requires LSX-DR intake manifold (p/n 809-19257851)
  • LSX-CT/DR spread port exhaust port pattern
  • Cast-in down-nozzle bosses (not machined)
  • Designed for up to 2.280'' intake and 1.620'' exhaust valves (4.165'' minimum bore)
  • Machined for 1.660'' valve springs
  • 11° valve angle
  • Minimum 4.125'' bore
  • 313cc CNC'd intake ports
  • 116cc CNC'd exhaust ports
  • 50cc CNC'd combustion chambers
  • Provisions for down-nozzle machining
  • 9° intake manifold angle - requires new LSX-DR intake manifolds
  • Unique LSX-DR exhaust bolt pattern
  • Raised rocker rails
  • Requires p/n 809-19201808 shaft-mount rocker kit
  • Capable of over 900 naturally aspirated horsepower!
  • Installed on LSX454R engine assembly

  • Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations