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Parts intended for competition use only*

Proposition 65 Warning*

Chevrolet Performance Parts 502 Crate Engine

The Most Popular Big-Blocks

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Parts intended for competition use only*

Proposition 65 Warning*

Up to

605 hp

Horsepower*

Up to

580 lb.-ft.

Torque*

Up to

6,200

Max Rec RPM

Up to

502 cu. in. (6.2L)

Displacement

502 Engines

HT502

Grit and potent power for hauling — skip the rebuild for a hefty alternative.

View HT502

Grit and potent power for hauling — skip the rebuild for a hefty alternative.

View HT502

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

406 hp @ 4,200 rpm

Torque:

541 lb.-ft. @ 3,200 rpm

Max Rec RPM:

5,500

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Pistons:

Forged aluminum

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433156

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.480 intake / .483 exhaust

Camshaft Duration (@0.050 in):

204° intake / 208° exhaust

Compression Ratio:

8.75:1

Rocker Arm Ratio:

1.7:1

Cylinder Head and Valves

Cylinder Heads:

Iron rectangular port; 118cc chambers

Valve Size (in.):

2.070 intake / 1.730 exhaust

Fuel and Ignition

Ignition Timing:

34° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Regular pump

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Tech Specs

Performance

Horsepower:

406 hp @ 4,200 rpm

Torque:

541 lb.-ft. @ 3,200 rpm

Max Rec RPM:

5,500

Engine Basics

Part Number:

94331561

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.480 intake / .483 exhaust

Camshaft Duration (@ 0.050 in):

204° intake / 208° exhaust

Compression Ratio:

8.75:1

Rocker Arm Ratio:

1.7:1

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Pistons:

Forged aluminum

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Cylinder Head and Valves

Cylinder Heads:

Iron rectangular port; 118cc chambers

Valve Size (in.):

2.070 intake / 1.730 exhaust

Fuel and Ignition

Ignition Timing:

34° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Regular pump

View in 2025 Catalog
502 HO

Drag-racing or competition-pulling — this classic defines big-block capabilities.

View 502 HO

Drag-racing or competition-pulling — this classic defines big-block capabilities.

View 502 HO

Tech Specs

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Performance

Horsepower:

461 hp @ 5,100 rpm

Torque:

558 lb.-ft. @ 3,400 rpm

Max Rec RPM:

5,500

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Piston and Ring Kit:

Forged aluminum

Intake Manifold:

Dual plane

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433157

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block (P/N 19170540):

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.510 intake / .540 exhaust

Camshaft Duration (@.050 in):

212° intake / 230° exhaust

Compression Ratio:

8.75:1

Rocker Arm Ratio:

1.7:1

Cylinder Head and Valves

Cylinder Heads (P/N 12562920):

Iron rectangular port; 118cc chambers

Valve Size (in.):

2.190 intake / 1.880 exhaust

Water Pump (P/N 12708488):

Cast-iron, long-style

Fuel and Ignition

Ignition Timing:

32° Total @ 4,000 rpm

Flexplate (P/N 10185034):

14”

Recommended Fuel:

Regular pump

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Locate a Dealer

Tech Specs

Performance

Horsepower:

461 hp @ 5,100 rpm

Torque:

558 lb.-ft. @ 3,400 rpm

Max Rec RPM:

5,500

Engine Basics

Part Number:

19433157

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block (P/N 19170540):

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.510 intake / .540 exhaust

Camshaft Duration (@.050 in):

212° intake / 230° exhaust

Compression Ratio:

8.75:1

Rocker Arm Ratio:

1.7:1

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Piston and Ring Kit:

Forged aluminum

Intake Manifold:

Dual plane

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Cylinder Head and Valves

Cylinder Heads (P/N 12562920):

Iron rectangular port; 118cc chambers

Valve Size (in.):

2.190 intake / 1.880 exhaust

Water Pump (P/N 12708488):

Cast-iron, long-style

Fuel and Ignition

Ignition Timing:

32° Total @ 4,000 rpm

Flexplate (P/N 10185034):

14”

Recommended Fuel:

Regular pump

View in 2025 Catalog
ZZ502/502

On the strip or working the toughest jobs — a 502 that doesn't know when to quit.

View ZZ502/502

On the strip or working the toughest jobs — a 502 that doesn't know when to quit.

View ZZ502/502

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

508 hp @ 5,200 rpm

Torque:

580 lb.-ft. @ 3,600 rpm

Max Rec RPM:

5,800

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Pistons:

Forged aluminum

Intake Manifold:

Dual plane

Carburetor:

870-cfm

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433162

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.527 intake / .544 exhaust

Camshaft Duration (@.050 in):

224° intake / 234° exhaust

Compression Ratio:

9.6:1

Rocker Arm Ratio:

1.7:1

Cylinder Head and Valves

Cylinder Heads:

Aluminum oval port; 110cc chambers

Valve Size (in.):

2.250 intake / 1.880 exhaust; stainless steel

Water Pump:

Aluminum, short-style

Fuel and Ignition

Ignition Timing:

32° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

Distributor:

HEI style

Spark Plugs and Wires:

Included

Starter:

Included

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Tech Specs

Performance

Horsepower:

508 hp @ 5,200 rpm

Torque:

580 lb.-ft. @ 3,600 rpm

Max Rec RPM:

5,800

Engine Basics

Part Number:

19433162

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.527 intake / .544 exhaust

Camshaft Duration (@.050 in):

224° intake / 234° exhaust

Compression Ratio:

9.6:1

Rocker Arm Ratio:

1.7:1

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Pistons:

Forged aluminum

Intake Manifold:

Dual plane

Carburetor:

870-cfm

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Cylinder Head and Valves

Cylinder Heads:

Aluminum oval port; 110cc chambers

Valve Size (in.):

2.250 intake / 1.880 exhaust; stainless steel

Water Pump:

Aluminum, short-style

Fuel and Ignition

Ignition Timing:

32° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

Distributor:

HEI style

Spark Plugs and Wires:

Included

Starter:

Included

View in 2025 Catalog
SP502/605

Defining power for muscle cars, hot rods or classic trucks — the buck stops here.

View SP502/605

Defining power for muscle cars, hot rods or classic trucks — the buck stops here.

View SP502/605

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

605 hp @ 6,000 rpm

Torque:

580 lb.-ft. @ 4,000 rpm

Max Rec RPM:

6,200

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Pistons:

Forged aluminum

Intake Manifold:

Aluminum dual plane

Carburetor:

870-cfm four-barrel

Camshaft Type:

Hydraulic roller

Rocker Arms:

Aluminum roller-style

Engine Basics

Part Number:

19421200

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.649 intake / .650 exhaust

Camshaft Duration (@.050 in):

246° intake / 257° exhaust

Compression Ratio:

10.3:1 (nominal)

Rocker Arm Ratio:

1.7:1

Cylinder Head and Valves

Cylinder Heads:

Aluminum oval port; 117cc chambers

Valve Size (in.):

2.250 intake / 1.880 exhaust; stainless steel

Water Pump:

Aluminum, short-style

Fuel and Ignition

Ignition Timing:

34° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

Distributor:

HEI style

Spark Plugs and Wires:

Included

Show Less

Locate a Dealer

Tech Specs

Performance

Horsepower:

605 hp @ 6,000 rpm

Torque:

580 lb.-ft. @ 4,000 rpm

Max Rec RPM:

6,200

Engine Basics

Part Number:

19421200

Engine Type:

Chevy Big-Block V8

Displacement:

502 cu. in. (8.2L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.470 in. x 4.000 in.

Valve Lift (in):

.649 intake / .650 exhaust

Camshaft Duration (@.050 in):

246° intake / 257° exhaust

Compression Ratio:

10.3:1 (nominal)

Rocker Arm Ratio:

1.7:1

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel, shot peened

Pistons:

Forged aluminum

Intake Manifold:

Aluminum dual plane

Carburetor:

870-cfm four-barrel

Camshaft Type:

Hydraulic roller

Rocker Arms:

Aluminum roller-style

Cylinder Head and Valves

Cylinder Heads:

Aluminum oval port; 117cc chambers

Valve Size (in.):

2.250 intake / 1.880 exhaust; stainless steel

Water Pump:

Aluminum, short-style

Fuel and Ignition

Ignition Timing:

34° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

Distributor:

HEI style

Spark Plugs and Wires:

Included

View in 2025 Catalog