The king of all big block crate engines is the Chevrolet Performance Parts ZZ502. It's as close as you'll get to a custom-built 502 at a crate engine price. With heavy-duty components, the ZZ502's power and durability are ensured.

Specifications

508 HP at 5200 RPM

580 ft/lbs TQ at 4200 RPM (Maximum Recommended RPM: 5800)

Compression Ratio: 9.6 to 1

Cast Iron 4-Bolt Main Block

1053 Forged Steel Crankshaft

Forged Aluminum Pistons

4340 Forged Steel Shot-Peened Connecting Rods with 7/16" Bolts

Aluminum Oval Port 110cc Cylinder Heads (2.25" Int/1.88" Exh valves)

Hydraulic Roller Cam (Lift: .527" Int/.544" Exh, Duration @ .050": 224° Int/234° Exh)

1.7 Ratio Rocker Arms

Aluminum Dual Plane Intake Manifold

Holley 870 cfm Carburetor

HEI Distributor and Spark Plug Wires

8" High-RPM Torsional Damper

Aluminum Water Pump

Lightweight Gear Reduction Starter

14" Flexplate

Hardware and Gaskets

6-quart oil pan

Windage tray