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Chevrolet Performance 454ci/425HP HO Engine

Chevrolet Performance
Chevrolet Performance 454ci/425HP HO Engine

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The Chevrolet Performance 454ci/425HP HO Engine is an awesome value, ready for an easy transplant into your classic muscle car or street rod! It is a Gen VI-based block with a conventional-style mechanical fuel pump boss, and it sounds much like the performance big blocks of the 1960s. The engine has a windage tray, one-piece rear main seal, and high-speed single roller timing chain. An 8.75:1 compression ratio means you've got an engine that's satisfied on today's premium fuel with no appetite for lead, octane boosters or other fuel additives.

  • 425 HP @ 5250 RPM
  • 500 ft/lbs TQ @ 3250 RPM
  • 8.75:1 Compression Ratio
  • Cast-Iron Four Bolt Main Block
  • Forged Steel Crankshaft
  • Forged Steel Connecting Rods
  • Hydraulic Roller Cam (Lift .510" Int/.540" Exh, Duration @ .050" 211° Int/230° Exh)
  • Cast Iron Rectangular Port 118cc Cylinder Heads (2.19" Int/1.88" Exh valves)
  • 1.7:1 Rocker Arms
  • 8'' Harmonic Balancer
  • 14'' Flexplate
  • Recommended Spark Plug: AC Delco #065-MR43T or any spark plug with 14mm, .460'' reach, 5/8'' hex, tapered seat, non-projected tip

    JEGS Easy Kits are designed by the experts at JEGS to ensure quick and easy installation.

    GM Warranty

  • 2 Products
    Chevrolet Perfromance 454 HO

    Chevrolet Performance Parts 454 HO Engine
  • 425 HP, 500 TQ
  • $5,646.99

    Chevrolet Performance Parts 454 HO Engine Kit
  • 454 HO Engine
  • 770 cfm Street Avenger Carb
  • HEI Distributor
  • 8.5mm Spark Plug Wires
  • Chrome Valve Covers
  • (4) Chrome Wing Nut Hold Downs
  • Chrome Dipstick
  • Dyno Chart for Chevrolet Performance 12568774K Easy Kits Installation Instructions for Chevrolet Performance 12568774K

    2 Products