Clearly the industry’s most efficient replacement for LS1, LS2, and LS6 cylinder heads, World’s 15° WARHAWK casting deliver more power than other aftermarket heads in its category. A number of important features set the WARHAWK 15° apart from others, including having the same 15° valve centerline and rocker arm attachment angles to ensure correct valve train geometry when longer valves are employed. The highly efficient 235cc intake (2.080” Valve) and 87cc exhaust ports (1.600 Valve) provide outstanding flow. You have a choice of 64cc or 72cc combustion chambers.
Want even more flow and power? World offers WARHAWK 15° heads that are CNC-ported ports. The intakes have been enlarged to 255cc runners while the exhaust side has also been enhanced. Larger 2.100 intake valves are employed. Available as bare castings or in race-ready assemblies that have a multi-angle intake valve job and radiused exhaust, are equipped with Manley stainless steel valves, high performance springs and Manley chrome moly retainers. Compatible with stock LS1 rocker arms and OEM stands.
They’re available bare, or in two different assemblies that are designed to match your camshaft’s valve spring requirements. A multi-angle valve job and Manley stainless steel valves make the assemblies an excellent value and a real time-saver for engine builders.
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TECHNICAL SPECS
Casting ID Number: WOR-075
Material: 355-T6 alloy high density aluminum
Valve Seats: Intake (hardened), exhaust (hardened)
Valve Guides: Manganese bronze
Spring Seats: Machined for 1.560"
Valves: Manley stainless steel valves in assemblies
Valve Diameter: 2.080" intake, 1.600" exhaust (5/16" stem) as cast, 2.100" intake, 1.600" exhaust (5/16" stem) CNC ported
Rocker Arms: Stock LS1 with stock stands
Intake Runner: 235cc, standard port location
Exhaust Ports: 87cc, 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 .300" for aftermarket valvetrain
Valve Angle: Stock 15°
Accessory Bolt Holes: Stock
HEAD FLOW @ .800 LIFT
305 intake, 212 exhaust (Super Flow 1050)
328 intake, 229 exhaust, (Super Flow 600)
CNC Ported @ .800 Lift
330 intake, 243 exhaust (Super Flow 1050)
352 intake, 261 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
WARHAWK 15° LS1, LS2, LS6
HEAD ASSEMBLY BUYING GUIDE
Use this guide to match your Cam Spring Specs to our Assembled Heads & choose which assembly you need from the choices below. Please Note: Bare Heads contain no Valves. |
-2 Assembled Heads: Solid Roller Street Cam
1.437": 125 lbs. @ 1.850", 340 lbs. @ 1.210", coil bind @ 1.160"
MAX LIFT @ .600"
-3 Assembled Heads: Solid Roller Race Cam
1.550": 200 lbs. @ 1.900", 480 lbs. @ 1.200", coil bind @ 1.150", max lift
MAX LIFT
@ .700" |
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