Chevrolet Performance 19419197 - LSX-LS7 CNC-Ported Cylinder Head Assembly

• Fully CNC Ported • 6-bolt-per-cylinder bolt pattern • LS7 style rectangle port design • Assembled with 2.200" titanium intake and 1.610" sodium-filled exhaust valves • Stock LS7 valve guides for 8mm valves • 12° valve angle; minimum 4.100" bore • 70cc “as-cast” combustion chambers • Handles .650" lift with premium springs • Uses LS7 rocker arms/LS7 bolts • Uses P/N 19257879 bare head (shown) • 397 cfm@0.700" intake, 230 cfm@0.700" exhaust