New 1991-Up GM 7.4L Carb or MPI Big Block

New 1987-'02 GM 7.4L High performance Big Block

PN: 454R

 

 New 1987-'02 GM 7.4L High performance Big Block PN: 454R

 New 1987-'02 GM 7.4L High performance Big Block
PN: 454R

GEN VI 454 High Performance

The best way to distinguish this engine from the other 7.4L engines is that it has rectangular port heads and a high performance camshaft. They are the same heads that are used on the 502 engines.

Engine Details »

  • Displacement: 7.4L (454 CID)
  • Horsepower: 385 hp @ 5200 RPM
  • Torque: 450 lb-ft @ 4000 RPM MPI
  • High Performance Camshaft
  • 1 Piece Rear Main Seal
  • Rectangular Port Heads

Engine Includes:

  • Oil Pan
  • Front Timing Cover
  • Harmonic Balancer
  • Valve Covers