GM LT1 High Pressure Fuel Pump HPFP 12744840 L83 L86 6.2L - Yes add new feed line

New, genuine GM LT1 HPFP. Fits any naturally aspirated Gen V LT engine. 
Part number 12744840 (Supercedes old number 12711662 and 12728002) 
GM recommends replacement of feed line 12677004 when servicing HPFP, add in the drop down if desired. 
****IF YOU HAVE A LATER 2018+ LT1/L8x THEN YOU MAY NEED AN ADAPTER HARNESS, WE HAVE THEM AVAILABLE**** 
****IF RUNNING AN AFTERMARKET CAM WITH A HIGHER % FUEL LOBE YOU MAY ALSO NEED TO SHIM THE CAM FOLLOWER THAT PUSHES ON THE HPFP, WITH A LASH CAP****