If your Gen III HEMI project is less “mild build” and more “hold my drink,” the AFR 224cc Black Hawk Cylinder Head is calling your name (loudly, and probably with a supercharger whine).
Crafted from A356 aluminum using permanent-mold voodoo (okay, not actual voodoo, just really good tech), these heads are all about max effort performance. We’re talking 100% CNC ported intake and exhaust ports, plus combustion chambers smoother than your pickup lines after three beers.
With a beefy .750” deck thickness, these heads are built to survive boost, backfires, and your questionable late-night tuning decisions. We even beefed up the water jacketing, so your engine keeps its cool—even if you don’t. There’s a machine option available for those bolting up a Hellcat blower, because of course there is.
The 224cc Black Hawk is designed for hydraulic roller cams up to .650” of lift and supports RPMs up to 7200. That’s right—rev it like your ex isn’t watching.
Inside, you’ll find PAC dual valve springs, titanium retainers, bead lock valves, bronze guides, hardened spring cups, and valve seats tough enough to arm-wrestle a crankshaft.
Oh, and just a heads up (pun intended): this listing is for one head. If your engine has two banks, you’ll probably want a second. Unless, you know, you’re building a V4. We won’t judge (but we might ask questions).
| 224cc Gen III Hemi As Cast Flow Chart |
| .200 | .300 | .400 | .500 | .550 | .600 | .650 | .700 |
| Int | 160 | 235 | 303 | 355 | 373 | 380 | 385 | 390 |
| Exh | 127 | 170 | 215 | 238 | 242 | 251 | 255 | 258 |
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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