CNC Ported 6.4L Cylinder Heads Texas Speed & Performance is proud to announce our all-new CNC porting for factory Hemi cylinder heads! With CNC machines dedicated to only machining Hemi cylinder heads, the result is quick turn-around times and the support of a company that operates 25+ CNC machines dedicated to late model performance parts! Our goal has been to offer the ultimate in performance while getting rid of the Hemi tax commonly seen from other companies. Our CNC machining of your cylinder heads will include tear down, cleaning and inspection, CNC porting, milling, and re-assembly of customer-supplied cylinder heads. The end result is the best CNC ported factory cylinder heads for your 6.4L Hemi. Dyno gains of over 30 HP have been seen in back-to-back testing! 6.4L Hemi cylinder heads Features: 5 Axis CNC Porting Intake & Exhaust Runners CNC Chamber Machining Hand blending Newen CNC Valve Seat Machining Stock Springs or PAC Upgraded Springs Available CNC Decking To Customers Specs Standard Hemi Plate-No Exhaust Pipe LIFT INTAKE FLOW EXHAUST FLOW .200" 167 CFM 118 CFM .300" 250 CFM 159 CFM .400" 327CFM 199 CFM .500" 370 CFM 222 CFM .600" 384 CFM 236 CFM .700" 392 CFM 245 CFM

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!

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PRC CNC Ported 6.4L Apache Cylinder Heads

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