AFR 224cc Gen 3 6.2L/6.4L Hemi - Full CNC - 73cc Chamber Driver Side

The AFR 224cc Black Hawk Cylinder Head is engineered for ultimate Gen III Hemi performance, designed for 5.7L, 6.1L, 6.2L, and 6.4L engines. Precision-crafted from A356 aluminum using permanent-mold technology, this high-performance cylinder head features 100% CNC ported intake and exhaust ports, as well as CNC-machined combustion chambers. Its robust .750” thick head deck is built to withstand high boost and extreme power levels. Enhanced water jacketing improves cooling while ensuring a minimum of .200” port-to-water-jacket thickness.

Designed for hydraulic roller camshafts up to .650” of lift, the AFR 224cc Gen III Hemi head is available in multiple configurations. A machining option is also available for bolt hole and dowel provisioning, making it compatible with Hellcat superchargers.

Key Features

Material: A356 Aluminum
Intake Port Volume: 224cc
Exhaust Port Volume: 64cc
Combustion Chamber Size: 69cc
Valve Angle: Stock
Deck Thickness: .750”
Max Camshaft Lift: .650”
Compatible Engine Sizes: 5.7L, 6.1L, 6.2L, 6.4L Gen III Hemi
Spark Plug Dimensions: 14mm x 1”

Performance & Flow Data

The AFR 224cc Gen III Hemi Black Hawk Cylinder Head delivers exceptional airflow for high-performance applications. Flow tests conducted at 28” of water pressure on a Superflow 1020 dyno yielded the following results:

Lift (in.)	.200	.300	.400	.500	.550	.600	.650	.700
Intake CFM	160	235	303	355	373	380	385	390
Exhaust CFM	127	170	215	238	242	251	255	258

Included Components

100% CNC Ported Intake & Exhaust Ports
100% CNC Machined Combustion Chambers
Competition 5-Angle Valve Job
PAC Racing Springs - 1.270” OD Hydraulic Roller Dual Valve Drag Race Spring (155 lbs. seat pressure, .650” max lift, 7000-7200 Max RPM)
10° Titanium Retainers & 8mm Valve Keepers with Lashcap Recess
Hardened Valve Spring Cups, Intake & Exhaust Valve Seats, and Bronze Valve Guides

Legal Disclaimer

These products are ILLEGAL for operation on any public highway, paved or unpaved road, or in public parks. They are only legal for use on dedicated racing vehicles. Violations are subject to a maximum penalty of $37,500 per violation, potential DMV registration revocation, and loss of vehicle usage on public roads.