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Home Categories GM 19328743
LS9 Cnc-Ported Head Assembly - GM (19328743)

LS9 Cnc-Ported Head Assembly - GM (19328743)

Genuine LS9 Cnc-Ported Head Assembly

LS9 Cnc-Ported Head Assembly - GM (19328743)

Discontinued Product

No Longer Available For Purchase

Manufacturer Warranty Minimum of 12 Months
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Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    19328743

  • Other Names:

    HEAD

  • Description:

    LS9 CNC-Ported Head Assembly

    • Special A356T6 aluminum Roto-cast head casting for greater strength. The mold is rotated during production to create a more solid casting that virtually eliminates porosity
    • Reinforced webbing and thicker deck (for minimal distortion) makes it an excellent choice for supercharged and turbocharged engine combinations
    • CNC-ported for approximately 10 percent greater airflow (intake side) than the regular-production cylinder head (similar to LS3 CNC-ported head P/N 88958758)
    • As-cast 66.5cc combustion chamber volume
    • Fully assembled with production LS9 2.165" (55mm) titanium intake valves and sodium-filled 1.590" (40mm) exhaust valves; and beehive-type valve springs
    • Valve springs rated for .570" max lift
    • Can be used on LS engines with at least a 4.000" bore using standard 11mm head bolts in place of the LS9's 12mm head bolts
    Head P/N 19328743 assembled with the following:
    • 12605524 Titanium Intake Valve (2.165")
    • 12596508 Valve Spring Caps
    • 12605525 Sodium Filled Exhaust Valve (1.590")
    • 10166345 Valve Stem Keys
    • 12625033 LS9 Beehive Valve Spring
    • 12482063 Valve Seal-Intake (Integral Seal & Spring Seat)
    • 12482062 Valve Seal-Exhaust (Integral Seal & Spring Seat)
    • 12596509 Rocker Arm Wear Pads (Intake valve only)
  • Condition: New
Warning WARNING: California Proposition 65

Vehicle Fitment

No application/vehicle fitment information available for this product
Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

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