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Chevrolet Performance 19201805 - Chevrolet Performance LSX-LS3 Cylinder Head



Chevrolet Performance 19201805 - Chevrolet Performance LSX-LS3 Cylinder Head

Part Number: 809-19201805

LSX-LS3 Cylinder Head
  • 260cc Intake Port / 80cc Exhaust Port
  • 70cc Combustion Chamber
  • 2.165'' Intake Valve / 1.590'' Exhaust Valve
  • Assembled, Sold Individually
  • $964.77
    Ships 09/02/16
    if Ordered Today
    Made In USA
    FREE Shipping

    Specifications:

    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    70
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    No
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    D-port
    Exhaust Runner Volume (cc)
    80
    Exhaust Valve Angle
    15
    Exhaust Valve Diameter (in.)
    1.59
    Exhaust Valves Included
    Yes
    Guideplates Included
    No
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Rectangular
    Intake Runner Volume (cc)
    260
    Intake Valve Angle
    15
    Intake Valve Diameter (in.)
    2.165
    Intake Valves Included
    Yes
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.57
    Number of Springs Per Valve
    Single
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.29
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    No
    Rocker Arms Included
    No
    Spark Plug Style
    Angled
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Centerbolt
    Valve Guide Material
    Powdered metal
    Valve Guides Included
    Yes
    Valve Seat Material
    Steel
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seal Style
    Positive stop
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    19201805

    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-LS3 Cylinder Head
  • L92 style rectangle port design
  • Assembled with 2.165'' hollow stem intake and 1.590'' solid stem 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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