This is the all new AFR 185cc Black Hawk Gen III HEMI Aluminum As Cast Cylinder Head, 69cc Chamber, Passenger Side. You will also need to order AFR part number 2509 to complete a pair of heads.
Compatible with Apache and Eagle engines produced from 2003 through 2023, Gen 3 Hemi 5.7L/6.1L Blocks Only
Manufactured from A356 aluminum using permanent-mold technology, AFR's 185cc As-Cast Black Hawk Gen III Hemi Aluminum Cylinder Heads are outfitted with our trademarked .750” thick head deck to meet the boost and power demands of today’s OEM and aftermarket engines. We have improved the water jacketing for enhanced cooling while retaining a minimum of .200” port to water jacket thickness. Machine option available to add bolt hole and dowel provisioning for Hellcat superchargers. Designed for use with hydraulic roller camshafts up to .600” of lift.
Note: This head will only work on 5.7L/6.1L blocks only AFR Gen III Hemi heads are the highest flowing on the market, view the image with flow numbers attached.
Basic Package Components |
Part # |
As-Cast Exhaust Ports, As-Cast Combustion Chambers
As-Cast Intake Ports
Competition 5-angle Valve Job |
|
8mm Bead Lock Intake Valve 2.050” x 5.108” O.A.L. |
AFR #7272 |
8mm Bead Lock Exhaust Valve 1.590” x 5.135” O.A.L. |
AFR #7273 |
PAC Racing Springs 1.290” OD Hydraulic Roller Dual Valve Drag Race Spring, 140 lbs. on seat, .600” maximum lift, Max RPM 6300-6500 |
AFR #8017 |
10° Chrome Moly Retainers 1.245” O.D x .880” I.D x .655” I.D |
AFR #8521 |
10° 8mm Valve Keepers with lashcap recess |
AFR #9009 |
Hardened Valve Spring Cup 1.380" O.D x 1.300" I.D x .570" I.D |
AFR#8042 |
Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep |
AFR #9060 |
Exhaust Valve Seats 1.696" O.D x 1.35" I.D x .375" Deep |
AFR #9073 |
Intake Bronze Valve Guides 8mm x 2.100" O.A.L |
AFR #9051 |
Exhaust Bronze Valve Guides 8mm x 2.100" O.A.L |
AFR #9051 |
Recommended Components |
Part # |
Intake Port Gasket |
OE Rubber Seal |
Hellcat/Blower Intake Port Gasket
Important: Do not use your OE gasket as a template to port match your intake manifold. |
68271246AA |
Exhaust Port Gasket |
OE |
Head Gasket |
OE |
Head Bolts / Studs |
OE |
Rocker Arms (For Optimized Geometry) |
OE |
Shaft Mount Rocker Arms T&D
Important: Do not use TD 8630 Adjustable Shaft Mount Rockers. Adjuster nut hits the valve cover and cannot be used. |
TD-8631 |
Suggested Manifold - Edelbrock |
EDL-7179 |
Spark Plug Starting Range |
Autolite AR-5324 Race Plug |
Specifications & Features |
Material |
A356 Aluminum
|
MSCA Minimum Cross Section Area |
2.422 in2
|
Intake Port Volume |
185cc
|
Intake Port Dimension |
1.750"H x 1.850"
|
Intake Port Location |
Stock
|
Exhaust Port Volume |
64cc
|
Exhaust Port Dimension |
1.550"H x 1.760" W
|
Exhaust Port Location |
Stock
|
Combustion Chamber Size (As-Cast) |
69cc
|
Valve Cover Bolt Pattern |
Perimeter Bolt
|
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"
|
|
