GM also introduced the 7.4 L 454 EFI in 1990 (known as the GEN V; the previous generation was known as the Mark IV produced between 1965-90; the GEN prefix was used since Ford Motor Company owns the Mark V naming rights since it was used on a Lincoln automobile between 1977-79), which was electronically fuel injected giving more power and torque. Instead of the regular 290 hp (220 kW), the 454 EFI version cranked out 365 hp (272 kW) and 415 lb·ft (563 N·m) of torque.
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