HHP is proud to finally release to market these Black Hawk Aluminum Gen III Cylinder Heads from the most popular head manufacturer Air Flow Research. These new heads are manufactured from A356 aluminum using permanent-mold technology and feature 100% CNC ported intake ports, exhaust ports & combustion chambers. They are outfitted with AFRs trademarked .750” thick head deck to meet the boost and power demands of today’s OEM and aftermarket engines.
Featuring improved water jacketing for enhanced cooling while retaining a minimum of .200” port to water jacket thickness rest assured you will have no cooling issues. These heads have also been designed to accept the larger and stronger 3/8" diameter push rods.
Designed for use with hydraulic roller camshafts up to .650” of lift, these heads are available in 185/212/224cc versions with your choice of a 69cc or 73cc chamber size.
Specifications & Features:
- Material: A356 Aluminum
- Minimum Cross Section Area: 2.877 in2
- Intake Port Volume: 212cc
- Intake Port Dimension: 1.91" W x 1.91" H
- Intake Port Location: Stock
- Exhaust Port Volume: 64cc
- Exhaust Port Dimension: 1.865" W x 1.285" H
- Exhaust Port Location: Stock
- Combustion Chamber Size: 73cc
- Valve Cover Bolt Pattern: Stock
- Valve Angle: Stock
- Valve Spring Pocket Diameter: 1.625"
- Max Valve Spring Pocket Machining: Do Not Machine
- Deck Thickness: .750"
- Minimum Bore Diameter: 3.197:
- Flat Mill: .006" per cc/ Maximum 62cc as cast chamber
- Angle Mill: .009" per cc/ Maximum 60cc as cast chamber Note: Angle mills might require a .120" Thick intake gasket.
- Spark Plug Dimensions: 14mm x 1"
Included with Complete Cylinder Heads:
- 100% CNC Exhaust Ports, 100% CNC Combustion Chambers
- Competition 5-angle Valve Job
- 8mm Bead Lock Intake Valve 2.125” x 5.135” O.A.L.
- 8mm Bead Lock Exhaust Valve 1.650” x 5.150” O.A.L.
- PAC Racing Springs 1.290” OD Hydraulic Roller Dual Valve Drag Race Spring, 140 lbs. on seat, .600” maximum lift, Max RPM 6300-6500 (upgrades available)
- 10° Titanium Retainers 1.245” O.D x .885” I.D x .655” I.D
- 10° 8mm Valve Keepers with lashcap recess
- Hardened Valve Spring Cup 1.380" O.D x 1.300" I.D x .570" I.D
- Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
- Exhaust Valve Seats 1.696" O.D x 1.35" I.D x .375" Deep
- Intake Bronze Valve Guides 8mm x 2.100" O.A.L
- Exhaust Bronze Valve Guides 8mm x 2.100" O.A.L
Recommended Components:
Intake Manifold Gaskets:
- 2009-2024 6.4L 53022143AB
- 2015-2024 6.2L 68271246AA
Important: Do not use your OE gasket as a template to port match your intake manifold.
Exhaust Manifold Gaskets:
- 6.2/6.4L 05038098AA / 05038099AA
Head Gaskets:
- 2011-2024 6.4L 05038280AE / 05038281AE
- 2015-2024 6.2L 68164621AE / 68164696AE
Rocker Arms (for Optimized Geometry): OEM
Shaft Mount Rocker Arms: T&D Machine 8631
Important: Do not use T&D Machine 8630 Adjustable Shaft Mount Rockers. Adjuster nut hits the valve cover and cannot be used.
Spark Plugs: Autolite Race Plug AR5324
WARNING FROM THE MANUFACTURER:
DEPENDING ON INDIVIDUAL STATES EMISSIONS REGULATIONS PRODUCTS LIKE THIS MAY BE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY CONFIRMED TO BE LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING.
