| | These bolt-on, CNC-ported cylinder heads are equipped with the highest quality parts and technology available to deliver optimum performance. Capable of handling camshafts with valve lifts up to .600", they are designed to optimize flow while maintaining optimum port velocity.
Specifications:
• brand-new, factory fresh castings (no core required)
• 5-axis CNC-ported
• ovate wire, “beehive” competition valve springs
• one-piece stainless steel intake and exhaust valves
• titanium, 7° valve spring retainers
• machined, 7° round groove valve locks
• high-temperature Viton® valve seals, bronze alloy valve guides, hardened, custom valve seats, premium “5-angle” CNC-machined valve job
CNC-Ported Cylinder Head, RH, 6.1L 392 Hemi. | 
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