For maximum performance from an LS-series engine, World's Warhawk 12 Degree Heads are the answer. Using superior Port design featuring 285cc Intake & 106cc exhaust runners that flow incredible numbers.

If even more flow is desired World offers a CNC Ported version that boast 296cc Intake & 110cc Exhaust runners. They are Dyno proven to crank out the power!

An important feature of the Warhawk 12 Degree head is that it comes with TWO EXTRA BOLT HOLES per cylinder (same as Warhawk LS7X Blocks) to provided extra sealing for power adder-boosted high combustion pressure applications.

Casting ID Number: WOR-076A | WOR-076B

Material: 355-T6 alloy high density aluminum
Valve Seats: Intake (hardened), exhaust (hardened)
Valve Guides: Manganese bronze
Spring Seats: Machined for 1.560" (can be machined for 1.625")
Valves: Manley stainless steel valves in assemblies
Valve Diameter: 2.200" intake, 1.600" exhaust (5/16" stem) as cast, 2.200" intake, 1.600" exhaust (5/16" stem) CNC ported
Rocker Arms: Stock LS7 rockers and integral stands
Intake Runner: 285cc, standard port location
Exhaust Ports: 106cc, standard location
Combustion Chamber: 64cc or 72cc
Spark Plug: 14mm .750" reach gasket style, Accel P526S or equivalent
Valve Job: Multi-angle intake and radiused exhaust
Valve Cover Rail: Raised .A34600" for aftermarket valvetrain
Valve Angle: Stock 12°
Accessory Bolt Holes: Stock

HEAD FLOW@ .700 LIFT
336 intake, 193 exhaust (Super Flow 1050)
343 intake, 219 exhaust (Super Flow 600)
CNC Ported Head @ .800 Lift
386 intake, 265 exhaust (Super Flow 1050)
409 intake, 281 exhaust (Super Flow 600)
All heads flowed with a standard .750" intake plate, without exhaust tube, and 28" of water.
CLICK HERE FOR COMPLETE HEAD FLOW DATA ON ALL OUR HEADS