Texas Speed / PRC CNC Ported 6.4L Apache Cylinder Heads with NEW CORES SUPPLED Select Springs:New Ported Heads with Stock Springs Emissions Disclaimer:This product does not

Emissions Disclaimer:This product does not require a CARB EO#

The projection cut-off line is perfect for American LHD regulation

Peak RPM Display: Will display actual shift RPMs after each shift – great when adjusting AutoUpshift to squeeze every last bit out of that high revving cam

Part #:147-7301

Auto stop-start Disable: If you have a Grand Cherokee or Durango with Auto StopStart

Texas Speed / PRC CNC Ported 6.4L Apache Cylinder Heads with NEW CORES SUPPLED Select Springs:New Ported Heads with Stock Springs Emissions Disclaimer:This product does notCNC 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