If your Gen III HEMI is feeling a little… let’s say, “held back,” it’s time to ditch the stock stuff and slap on AFR’s 212cc CNC Ported Black Hawk Aluminum Cylinder Head—basically the brainiac jock of cylinder heads. It’s smart, strong, and not afraid to flex.
Built using A356 aluminum and permanent-mold casting sorcery, this bad boy is 100% CNC ported from intake to exhaust to combustion chamber. Yes, all the way. It flows like a river, performs like a champ, and looks cooler than a penguin in Ray-Bans.
Designed for 5.7L, 6.1L, 6.2L, and 6.4L HEMIs, this head hits that magical street/strip sweet spot—giving you killer low-end torque while still screaming up top like a banshee on race day. Want to bolt on a Hellcat blower later? We’ve got you covered with optional machining for bolt hole and dowel provisions.
With a .750” thick head deck (thiccc with three C’s), improved cooling from better water jacketing, and robust components like PAC Racing springs, 5-angle valve jobs, and bead lock valves, this setup is built for engines that like to party—hard.
It’s good up to .600” lift and 6500 RPM, so you can run your hydraulic roller cam with confidence. Bonus points: it’ll probably outflow your buddy’s “race heads” without breaking a sweat. Or your budget.
Heads up: listing is for one (just the driver side). Don’t leave your other cylinders out there wondering where their new head is.
| 212cc Gen III Hemi CNC Flow Chart |
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 |
| Int | 162 | 237 | 304 | 352 | 369 | 373 | 374 | 375 |
| Exh | 125 | 166 | 213 | 236 | 242 | 248 | 252 | 254 |
Test conducted at 28″ of water (pressure) on Superflow 1020
Bore Size: 4.060″, 3/4″ radius plate exhaust, 1 3/4″ curved pipe
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