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19419187 LSX-LS3 Cylinder Head, Replaces 19354243, 19201805
• 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