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Chevrolet Performance ZZ454/440 454ci/440HP Engine

Chevrolet Performance
Chevrolet Performance ZZ454/440 454ci/440HP Engine

Oval-Port Aluminum Heads Deliver Big Power
in an Affordable Package!

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Chevrolet Performance engineers took the 454 HO - with its super-tough, all-forged reciprocating assembly - and matched it with a set of higher-flow, oval-port aluminum cylinder heads to pick up an additional 15 horses, while still offering 500 ft/lbs of torque. They dubbed it the ZZ454/440, and it's an affordable high-performance Big-Block for any chassis you can stuff it in.

The ZZ454/440 uses the new cylinder block casting for greater strength and performance, while the aluminum heads use smaller, 110cc combustion chambers to boost compression to 9.6:1, up from 8.5:1 on the 454 HO. Then matched the airflow capability with a high-lift, hydraulic roller camshaft that delivers great idle quality and requires no periodic lash adjustments.

This crate engine package includes the ZZ454/440 assembled with a water pump, balancer, aluminum intake manifold, and a 14-inch flexplate. To simply finish up this package, you will need a carburetor, starter, ignition system, and other accessories. Don't sweat it, JEGS has all the components you need to get this big-power Big-Block started.

  • Engine Type: Chevy Big-Block V-8
  • Displacement: 454ci
  • Bore x Stroke: 4.250'' x 4.000''
  • Block: Cast-iron with four-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .510'' intake / .540'' exhaust
  • Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
  • Cylinder Heads: Aluminum oval port, 110cc combustion chambers
  • Valve Size: 2.190'' intake / 1.880'' exhaust
  • Compression Ratio: 9.6:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.7:1
  • Water Pump: Cast-iron, long-style
  • Flexplate: 14'' diameter
  • Recommended Fuel: 92 octane
  • Ignition Timing: Base 4° BTDC, 26° Total
  • Maximum Recommended RPM: 5500
  • Balanced: External
  • JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    GM Warranty

    2 Products
    Chevrolet Performance 12498777 - Chevrolet Performance ZZ454/440 454ci/440HP Engine
    ZZ454/440 454ci Engine
  • 440 HP @ 5250 RPM
  • 500 ft/lbs TQ @ 3250 RPM
  • FREE
    Chevrolet Performance 12498777K - Chevrolet Performance ZZ454/440 454ci/440HP Engine
    ZZ454/440 454ci Engine
  • 440 HP @ 5250 RPM
  • 500 ft/lbs TQ @ 3250 RPM
  • ZZ454/440 Engine
  • HEI Distributor
  • 770CFM Street Avenger Carburetor
  • Carburetor Studs
  • Prostarter Offset Starter
  • 8.0mm Red Hot Pow'r Wires
  • FREE
    Dyno Chart for Chevrolet Performance 12498777K Easy Kits Installation Instructions for Chevrolet Performance 12498777K

    2 Products