1987-1988 Chevrolet R30 5.7L V8 VIN: K. 1987-1988 Chevrolet R30 7.4L V8 VIN: N. Notes: Fuel Injection Pressure Regulator -- Fuel pressure regulator diaphragm kit. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.