Chevrolet Performance ZZ427/480 427ci Crate Engine – 19331572

Unleash serious big-block power with the Chevrolet Performance ZZ427/480 427ci Crate Engine. This legendary displacement delivers 480 horsepower and 490 lb-ft of torque through advanced engineering. The ZZ427 features aluminum cylinder heads, aggressive camshaft profile, and premium components for maximum performance. The 7.0L displacement provides excellent power-to-weight ratio and high-RPM capability. Perfect for pro-touring builds, muscle car restorations, and performance applications requiring serious naturally aspirated power. Factory-assembled and dyno-tested for quality assurance.

**Technical Specifications:**

ZZ427-480 Technical Specifications
Ref. No.: 19331572
Engine Type: Chevy Big-Block V-8
Displacement (cu. in.): 427 (7.0L)
Bore x Stroke (in.): 4.250 x 3.750
Block (Ref. 19170538): Cast iron with four-bolt main bearing caps
Crankshaft (Ref. 19171620): Forged steel
Connecting Rods (Ref. 19211226): Forged steel
Pistons (Ref. 19171618): Forged aluminum
Camshaft Type (Ref. 12366543): Hydraulic roller
Camshaft Lift (in.): .527 intake / .544 exhaust
Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
Cylinder Heads (Ref. 19211799): Aluminum with oval ports, 110 cc chambers
Valve Size (in.): 2.190 intake / 1.880 exhaust
Compression Ratio: 10.1:1
Rocker Arms (Ref. 19210726): Aluminum roller style
Camshaft Ratio: 1.7:1
Distributor (Ref. 19212081): HEI type
Carburetor (Ref. 19170093): 770 cfm
Water Pump (Ref. 19168602): Short style aluminum
Spark Plugs and Wires: Included
Recommended Fuel: Premium pump
Ignition Timing: 36° Total @ 4,000 rpm
Recommended Maximum RPM: 6400
Balanced: Internally