zz502 base

ZZ502/502 BASE

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$9,911

MSRP

508 HP

@5200 RPM

19331576

PART NO.

580 LB-FT

@3600 RPM

The DIY foundation for big torque

It’s simple: We offer the ZZ502/502 Base crate engine for builders who want the super-strong bottom end and high-flow aluminum oval-port cylinder heads, but also want to finish the engine their way.

 

The ZZ502/502 Base engine uses our new cylinder block casting that is stronger and better suited to high-performance combinations. A forged-steel crankshaft, forged rods, and forged pistons form the reciprocating assembly, with a smooth-operating hydraulic roller camshaft delivering big 0.527/0.544-inch lift. The lightweight aluminum heads boast 110-cc combustion chambers and big, 2.25-inch intake and 1.88-inch exhaust valves.

 

We rate the ZZ502/502 Base engine at 508 horsepower and 580 lb-ft of torque when it is finished with Chevrolet Performance aluminum intake manifold (P/N 12363406) and Holley 870-cfm carburetor (P/N 19170094). The other parts you need to complete the engine — including chrome dress-up parts — are available from your dealer and chevrolet.com/performance.com.

 

The ZZ502/502 Base is a great foundation. It’s up to you to make the most of it.

Tech Specs

Part Number: 19331576

Engine Type: Chevy Big-Block V-8

Displacement (cu. in.): 502

Bore x Stroke (in.): 4.470 x 4.000

Block (P/N 19170540): Cast-iron with four-bolt main caps

Crankshaft (P/N 10183723): Forged steel

Connecting Rods (P/N 19170198): Forged steel, shot peened

Pistons (P/N 12533507): Forged aluminium

Camshaft Type (P/N 12366543): Hydraulic roller

Camshaft Lift (in.): .527 intake / .544 exhaust

Camshaft Duration (@.050 in.): 224° intake / 234° exhaust

Cylinder Heads (P/N 12499255): Aluminum oval port; 110-cc chambers

Valve Size (in.): 2.250 intake / 1.880 exhaust; stainless steel

Compression Ratio: 9.6:1

Rocker Arms (P/N 12368082): Stamped steel

Rocker Arm Ratio: 1.7:1

Recommended Fuel: 92 octane

Ignition Timing: Base 8° BTDC, 30° total

Maximum Recommended rpm: 5800

Balanced: External

Ignition Timing: 36-degrees @4,000 rpm

Maximum Recommended rpm: 6,000

Balanced: Internal

Installation Guides

Find everything from the vital data about your engine’s capabilities to how to install it into your build.


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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

  • The Manufacturer's Suggested Retail Price excludes tax, shipping and installation. Individual retailer pricing may vary. Please see your local dealer or retailer for details.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.