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Big-Displacement Performance

Big-Displacement Performance

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Parts intended for competition use only*

Proposition 65 Warning*

A Yellow Horsepower Icon

Up to

469 hp

Horsepower*

Two Yellow Gears Slightly Apart with an Arrow Pointing at a Curve from the Left One to the Other

Up to

519 lb.-ft.

Torque*

A Yellow Speedometer Icon

Up to

5,500

Max Rec RPM

A Yellow Displacement Icon

Up to

454 cu. in. (7.4L)

Displacement

454 Engines

454 HO

View 454 HO

An evolved cylinder block with outstanding torque.

View 454 HO

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

438 hp @ 5,300 rpm

Torque:

500 lb.-ft. @ 3,500 rpm

Max Rec RPM:

5,500

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel

Pistons:

Forged aluminum

Intake Manifold:

Dual plane

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Water Pump:

Cast-iron, long-style

Engine Basics

Part Number:

19433409

Engine Type:

Chevy Big-Block V8

Displacement:

454 cu. in. (7.4L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.250 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:

Iron rectangular port; 118cc chambers

Valve Size (in.):

2.190 intake / 1.880 exhaust

Fuel and Ignition

Ignition Timing:

36° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

Show Less

Tech Specs

Performance

Horsepower:

438 hp @ 5,300 rpm

Torque:

500 lb.-ft. @ 3,500 rpm

Max Rec RPM:

5,500

Engine Basics

Part Number:

19433409

Engine Type:

Chevy Big-Block V8

Displacement:

454 cu. in. (7.4L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.250 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

Pistons:

Forged aluminum

Intake Manifold:

Dual plane

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Water Pump:

Cast-iron, long-style

Cylinder Head and Valves

Cylinder Heads:

Iron rectangular port; 118cc chambers

Valve Size (in.):

2.190 intake / 1.880 exhaust

Fuel and Ignition

Ignition Timing:

36° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

View in 2025 Catalog

Locate a Dealer
ZZ454/440

View ZZ454/440

Extra airflow, horsepower and torque — this 454 doesn't settle for second.

View ZZ454/440

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

469 hp @ 5,500 rpm

Torque:

519 lb.-ft. @ 3,700 rpm

Max Rec RPM:

5,500

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel

Pistons:

Forged aluminum

Intake Manifold:

Dual plane

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Water Pump:

Cast-iron, long-style

Engine Basics

Part Number:

19433410

Engine Type:

Chevy Big-Block V8

Displacement:

454 cu. in. (7.4L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.250 in. x 4.000 in.

Valve Lift (in):

.510 intake / .540 exhaust

Camshaft Duration (@ 0.050 in):

211° intake / 230° 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.):

2.190 intake / 1.880 exhaust

Fuel and Ignition

Ignition Timing:

36° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

Show Less

Tech Specs

Performance

Horsepower:

469 hp @ 5,500 rpm

Torque:

519 lb.-ft. @ 3,700 rpm

Max Rec RPM:

5,500

Engine Basics

Part Number:

19433410

Engine Type:

Chevy Big-Block V8

Displacement:

454 cu. in. (7.4L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.250 in. x 4.000 in.

Valve Lift (in):

.510 intake / .540 exhaust

Camshaft Duration (@ 0.050 in):

211° intake / 230° exhaust

Compression Ratio:

9.6:1

Rocker Arm Ratio:

1.7:1

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged steel

Pistons:

Forged aluminum

Intake Manifold:

Dual plane

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Water Pump:

Cast-iron, long-style

Cylinder Head and Valves

Cylinder Heads:

Aluminum oval port; 110cc chambers

Valve Size (in.):

2.190 intake / 1.880 exhaust

Fuel and Ignition

Ignition Timing:

36° Total @ 4,000 rpm

Flexplate:

14”

Recommended Fuel:

Premium pump

View in 2025 Catalog

Locate a Dealer

Overhead View of Engineers in White Lab Coats Look at an Engine

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A look back at the Big-Block
Engine Family History.

A Chevy Performance Parts LS Crate Engine Seated in an Engine Bay

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Best Engines of the 2024 Indianapolis Bowtie Nationals

Engine & Transmission Packages

Factory-matched Connect & Cruise* engine-and-transmission
combinations that deliver.

A Chevrolet Performance Parts Connect and Cruise Powertrain System

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“It simplifies the whole project. If you have any issues, you plug into it, and you work on it and go from there. It makes it so simple.”

Talbert Goldman
Mike Goldman Customs

Assemble the Dream Powertrain System

Compatible transmissions and components for 454 models.

Build confidently with Chevrolet Performance installation guides.

454 HO

ZZ454/440

Find dealers ready to help you with Chevrolet Performance Parts.

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