Pair Mercruiser Mpi 330 Hp 454 7.4 l-29 EFI

FOR SALE Pair Mercruiser Mpi 330 Hp 454 7.4 l-29 EFI. This engine great running and excellent condition. Come with warranty 60 days.

The MerCruiser 7.4L MPI (L29) is a 454 cubic-inch big-block V8 marine engine utilizing multiport fuel injection. It is officially rated at 310 to 330 hp, delivering robust torque and reliable performance for cruisers and larger runabouts.

Core Specifications

• • Displacement : 7.4L (454 CID)
  • Horsepower : 330 hp
  • Peak Torque : ~400 ft-lbs
  • Engine Type : GM Gen. VI V8, Cast Iron Block and Cylinder Heads
  • Fuel System : Multi-Port Electronic Fuel Injection (MPI)
  • Firing Order : 1-8-4-3-6-5-7-2Operating Range (WOT): 4200–4600 RPM
  • Idle RPM : 600 RPM (in neutral, non-adjustable EFI)
  • Thermostat : 160° F (71° C)
  • Oil Pressure (at 2000 RPM) : 30–70 psi (207–483 kPa)
  • Recommended Battery : Minimum 650 CCA / 825 MCA / 150 Ah