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Chevrolet Performance Anniversary Edition 427 All-Aluminum 427ci/430HP Engine

Chevrolet Performance
Chevrolet Performance Anniversary Edition 427 All-Aluminum 427ci/430HP Engine

A Limited-Edition Crate Engine
That Honors the Legendary ZL1

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The year was 1969, and the muscle car wars were in full swing. Each one of the big three had developed their own version of the ultimate high-performance big block engine. Then, GM unleashed the ZL1, the most powerful engine ever released by General Motors.
At the height of these muscle car wars, a few enterprising, dealer-backed racers worked the loopholes of Chevrolet's COPO ordering system to create a handful of factory-built supercars that weren't found in any brochure or order guide. They were equipped with an all-aluminum 427 engine dubbed the ZL1. It was similar in specification to the legendary L88 427, but with an aluminum block that saved about 100 pounds.

Chevrolet Performance commemorates the ZL1 with the Anniversary Edition 427 - an aluminum-block crate engine that mimics the original in spirit, but with design upgrades that make it a street-friendly option for resto-mod and tribute projects. Our modern aluminum cylinder block features strength-enhancing design tweaks, screw-in galley plugs, and more. We also use a hydraulic roller camshaft in place of the ZL1's original-type flat-tappet cam, making for smoother street operation and greatly reduced maintenance.

Only 427 examples of this unique engine were built, with each numbered crate engine including a special owner's kit with an authenticity certificate, special 427 emblems, and more.

  • Engine Type: Aluminum Chevy Big-Block V-8
  • Displacement: 427ci
  • Bore x Stroke: 4.250'' x 3.750''
  • Block: Cast-Aluminum with four-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .527'' intake / .544'' exhaust
  • Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
  • Cylinder Heads: Aluminum oval port, 110cc combustion chambers
  • Valve Size: 2.190'' intake / 1.880'' exhaust
  • Compression Ratio: 10.1:1
  • Rocker Arms: Aluminum roller style
  • Rocker Arm Ratio: 1.7:1
  • Distributor: HEI type
  • Carburetor: 770-cfm
  • Water Pump: Aluminum, short-style
  • Spark Plugs and Wires: Included
  • Flexplate: 14'' diameter, internally balanced
  • Recommended Fuel: 92 octane
  • Ignition Timing: Base 10° BTDC, 36° Total
  • Maximum Recommended RPM: 6400
  • Balanced: Internal
  • GM Warranty

    1 Product
    Chevrolet Performance 19166392 - Chevrolet Performance Anniversary Edition 427 All-Aluminum 427ci/430HP Engine
    Anniversary Edition 427 All-Aluminum 427ci Engine
  • 430 HP @ 5800 RPM
  • 444 ft/lbs Torque @ 3800 RPM
  • FREE
    Order Today Ships 12/08/15

    1 Product