Looking to make your Hemi breath fire? Mopar has you covered. Whether on the street or at the track, these bolt-on, CNC-ported cylinder heads from Mopar are equipped with the highest quality parts and technology available to deliver optimum performance. Capable of handling camshafts with valve lifts up to .600", these cylinder heads are designed to optimize flow while maintaining optimum port velocity.

• 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-degree valve spring retainers
• Machined, 7-degree, round groove valve locks
• High-temperature Viton valve seals
• Bronze alloy valve guides
• Hardened, custom valve seats
• Premium 5-angle, CNC-machined valve job
• Sold together as a kit, including both the left and right cylinder heads

Boost your Grand Cherokee's power and performance with Mopar CNC-Ported Cylinder Heads.