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Chevrolet Performance 19213963

LSX-LS9 Cylinder Head, 260cc Intake Port / 80cc Exhaust Port

Chevrolet Performance 19213963
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809-19213963

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Estimated ship date 11/27/17 if Ordered Today
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Chevrolet Performance 19213963 LSX-LS9 Cylinder Head, 260cc Intake Port / 80cc Exhaust Port $1,145.55
LSX-LS9 Cylinder Head
  • 260cc Intake Port / 80cc Exhaust Port
  • 70cc Combustion Chamber
  • 2.165'' Intake Valve / 1.590'' Exhaust Valve
  • Assembled, Sold Individually

  • Specifications:

    Manufacturer's Part Number:
    19213963

    Extending the performance range of the LSX platform are Chevrolet Performance's new, 6-bolt LSX cylinder heads. Many are capable of flowing more than 400 cfm and their 6-bolts-per-cylinder clamping design gives them bomb-proof strength. Your horsepower-building potential is nearly unlimited with LSX heads. These aluminum masterpieces of performance feature port and chamber designs based on popular and performance-proven production-style heads, such as the LS3/L92 and LS7 heads. They are easily identified by the engraved LSX logo on the ends.
    All LSX heads are made of 356-T6 aluminum and feature a 5/8'' thick deck that allows plenty of room for builder-specified combinations.

    Additional features include:
  • Uses 11mm (10) and 8mm (13) head bolts
  • Accommodates production valvetrain components (except for Drag Race and Circle Track heads)
  • Includes premium beehive-type valve springs (except for Drag Race and Circle Track heads)
  • Extra material cast in the port areas to accommodate professional porting
  • Valve guides for 8mm valve stems, except DR & CT Racing-specific LSX-DR (Drag Racing) and LSX-CT (Circle-Track) heads feature raised runner designs and other unique features designed to maximize performance at the track.

    LSX Street Heads
    Four LSX street head configurations are offered: The LSX-LS7 head, the LSX-LS3 head, the LSX-LS9 head and the LSX-L92 Small Bore head. The LSX-L92 head features smaller combustion chambers that are compatible with smaller bore LS1 and LS6 engines. The street heads accommodate valve springs with up to 1.37'' diameter bases, but can be machined for larger springs.

    LSX-LS7 Cylinder Head
  • L92 style rectangle port design
  • Assembled with 2.165'' titanium intake and 1.590'' sodium-filled exhaust valves
  • 15� valve angle
  • Minimum 4.000'' bore
  • 260cc ''as-cast'' intake ports, 80cc ''as-cast'' exhaust ports
  • 70cc ''as-cast'' combustion chambers
  • Uses LS3 rocker arms/LS7 bolts

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