Nostrum Energy 1050-250 - Gen V LT1 High Pressure Fuel Pump

NOTE: Spring and lower plate must be moved over from the stock pump! Piston Diameter: 10.5 mm Max Piston Travel (TDC-BDC): 10 mm Max Operating Pressure (Rail Pressure Target): 250 bar (25 MPa / 3636 psi) Displaced Flow Per Cam Revolution (6 mm stroke, 3 lobe): 1558.6 mm^3 High Pressure Fitting Spec: M14x1 male thread with inner female cone Low Pressure Fitting Spec: 3/8" SAE quick connect male fitting Nostrum's Standard Bore Plus high pressure fuel pump is a universal HPFP core with a 10.5mm piston and a 250bar operating pressure. Capable of 250 bar rail pressure sustained operation, this HPFP has a higher pressure rating than the 180 bar standard rating of the production GM LT1 pump, and is comparable to the pressure rating of the GM LT4 pump. The pump outline is comparable to the GM LT1 HPFP (part number 12697966 or 12625817). However this pump does not include the accessories and hardware associated with engine installation. For single piece service parts with accessories and hardware, please go to your local GM parts center.