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Parts intended for competition use

Proposition 65

A Chevrolet Performance Parts 350 Crate Engine

A Legacy of High Performance

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Parts intended for competition use

Proposition 65

Up to

420 hp

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

Up to

408 lb.-ft.

Up to

5,800

Max Rec RPM

Up to

350 cu. in. (5.7L)

Displacement

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350 Engines

350 HO Turnkey

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Unforgettable, world-class performance built on the original legendary assembly.

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Unforgettable, world-class performance built on the original legendary assembly.

Tech Specs

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Performance

Horsepower:

333 hp @ 5,100

Torque:

381 lb.-ft. @ 3,700

Max Rec RPM:

5,100

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Cast aluminum

Intake Manifold

Dual-plane aluminum

Camshaft Type:

Hydraulic flat tappet

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433031

Engine Type:

Chevy Small-Block V-8

Displacement:

350 cu. in. (5.7L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

.435 intake / .460 exhaust

Camshaft Duration:

212° intake / 222° exhaust

Compression Ratio:

9.6:1

Rocker Arms:

Stamped steel

Rocker Arm Ratio:

1.5:1

Cylinder Head and Valves

Cylinder Heads:

Vortec iron; 62cc chambers

Valve Size (in):

1.940 intake / 1.500 exhaust

Water Pump:

Cast iron, long-style

Fuel and Ignition

Flexplate:

12.750”

Ignition Timing:

32° Total @ 4,000 rpm

Recommended Fuel:

Premium pump

Reluctor Wheel:

58x

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Tech Specs

Performance

Horsepower:

333 hp @ 5,100

Torque:

381 lb.-ft @ 3,700

Max Rec RPM:

5,100

Internal Components

Crankshaft (P/N 12691722):

Forged Steel

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Cast aluminum

Intake Manifold:

Dual-plane aluminum

Camshaft Type:

Hydraulic flat tappet

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433031

Engine Type:

Chevy Small-Block V-8

Displacement:

350 cu. in. (5.7L)

Block:

Cast iron with 4-bolt main caps

Balanced:

External

Cylinder Heads and Valves

Cylinder Heads:

Vortec iron; 62cc chambers

Valve Size (in.):

1.940 intake / 1.500 exhaust

Water Pump:

Cast iron, long-style

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

.435 intake / .460 exhaust

Camshaft Duration:

212° intake / 222° exhaust

Compression Ratio:

9.6:1

Rocker Arms:

Stamped steel

Rocker Arm Ratio:

1.5:1

Fuel and Ignition

Flexplate:

12.750”

Ignition Timing:

32° Total @ 4,000 rpm

Recommended Fuel:

Premium pump

Reluctor Wheel:

58x

View in 2025 Catalog
SP350/357 Turnkey

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The next 350 evolution — high torque and horsepower from modern valvetrain technology.

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The next 350 evolution — high torque and horsepower from modern valvetrain technology.

Tech Specs

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Performance

Horsepower:

357 hp @ 5,500 rpm

Torque:

407 lb.-ft @ 4,000 rpm

Max Rec RPM:

5,600 rpm

Internal Components

Crankshaft:

Forged steel

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Cast aluminum

Intake Manifold:

Dual-plane aluminum

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433034

Engine Type:

Chevy Small-Block V-8

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

0.473 intake / 0.473 exhaust

Camshaft Duration (@ .050 in):

215° intake / 223° exhaust

Compression Ratio:

9.0:1 nominal

Rocker Arm Ratio:

1.5:1

Cylinder Head and Valves

Cylinder Heads:

Cast iron; as cast with 62cc chambers

Valve Size (in):

1.940 intake / 1.500 exhaust

Fuel and Ignition

Flexplate (P/N 14088765):

12.750”

Ignition Timing:

32° total @ 4,000 rpm

Recommended Fuel:

Premium pump

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Locate a Dealer

Tech Specs

Performance

Horsepower:

357 hp @ 5,500 rpm

Torque:

407 lb.-ft @ 4,000 rpm

Max Rec RPM:

5,600 rpm

Internal Components

Crankshaft:

Forged Steel

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Cast aluminum

Intake Manifold:

Dual-plane aluminum

Camshaft Type:

Hydraulic roller 850-cfm

Rocker Arms:

Stamped steel

Engine Basics

Part Number:

19433034

Engine Type:

Chevy Small-Block V-8

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt main caps

Balanced:

External

Cylinder Heads and Valves

Cylinder Heads:

Cast iron; as cast with 62cc chambers

Valve Size (in.):

1.940 intake / 1.500 exhaust

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

0.473 intake / 0.473 exhaust

Camshaft Duration (@ .050 in):

215° intake / 223° exhaust

Compression Ratio:

9.0:1 nominal

Rocker Arm Ratio:

1.5:1

Fuel and Ignition

Flexplate (P/N 14088765):

12.750”

Ignition Timing:

32° Total @ 4,000 rpm

Recommended Fuel:

Premium pump

View in 2025 Catalog
SP350/385 Turnkey

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Breathtaking performance — a 350 using every cubic inch of air drawn through it.

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Breathtaking performance — a 350 using every cubic inch of air drawn through it.

Tech Specs

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Performance

Horsepower:

385 hp @ 5,600 rpm

Torque:

405 lb.-ft @ 3,600 rpm

Max Rec RPM:

5,800 rpm

Internal Components

Crankshaft:

Forged steel, shot peened

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Hypereutectic aluminum

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Intake Manifold:

Dual-plane aluminum

Engine Basics

Part Number:

19433040

Engine Type:

Chevy Small-Block V-8

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

.474 intake / .510 exhaust

Camshaft Duration:

208° intake / 221° exhaust

Compression Ratio:

9.6:1 nominal

Rocker Arm Ratio:

1.5:1

Cylinder Head and Valves

Cylinder Heads:

Fast Burn aluminum; 62-cc chambers

Valve Size (in):

2.000 intake / 1.550 exhaust

Fuel and Ignition

Flexplate (P/N 14088765):

12.750”

Ignition Timing:

36° total @ 4,000 rpm

Recommended Fuel:

Premium pump

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Locate a Dealer

Tech Specs

Performance

Horsepower:

385 hp @ 5,600 rpm

Torque:

405 lb.-ft @ 3,600 rpm

Max Rec RPM:

5,800 rpm

Internal Components

Crankshaft:

Forged steel, shot peened

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Hypereutectic aluminum

Camshaft Type:

Hydraulic roller

Rocker Arms:

Stamped steel

Intake Manifold:

Dual-plane aluminum

Engine Basics

Part Number:

19433040

Engine Type:

Chevy Small-Block V-8

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt main caps

Balanced:

External

Cylinder Head and Valves

Cylinder Heads:

Fast Burn aluminum; 62-cc chambers

Valve Size (in.):

2.000 intake / 1.550 exhaust

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

0.473 intake / 0.473 exhaust

Camshaft Duration:

208° intake / 221° exhaust

Compression Ratio:

9.6:1 nominal

Rocker Arm Ratio:

1.5:1

Fuel and Ignition

Flexplate (P/N 14088765):

12.750”

Ignition Timing:

36° Total @ 4,000 rpm

Recommended Fuel:

Premium pump

View in 2025 Catalog
ZZ6 Turnkey

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Designed to dwarf the competition — the 350 with modern upgrades.

View Engine

Designed to dwarf the competition — the 350 with modern upgrades.

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

405 hp @ 5,600 rpm

Torque:

406 lb.-ft. @ 4,600 rpm

Max Rec RPM:

5,800

Internal Components

Crankshaft:

Forged steel, shot peened

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Hypereutectic aluminum

Intake Manifold:

Single plane aluminum

Rocker Arms:

Aluminum roller style

Engine Basics

Part Number:

19433042

Engine Type:

Chevy Small-Block

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt mains

Balanced:

External

Measurements

Bore x Stroke:

4.000 in. x 3.480 in.

Valve Lift (in):

.474 intake / .510 exhaust

Camshaft Duration:

208° intake / 221° exhaust

Compression Ratio:

9.7:1 (nominal)

Rocker Arm Ratio:

1.5:1

Cylinder Head and Valves

Cylinder Heads (P/N 19417592):

Fast Burn aluminum; 62cc chambers

Valve Size (in):

2.000 intake / 1.550 exhaust

Fuel and Ignition

Ignition Timing:

36° total @ 4,000 rpm

Flexplate (P/N 14088765):

12.750”

Recommended Fuel:

Premium pump

Carburetor (P/N 19420445):

770 cfm Holley

Distributor (P/N 19432312):

HEI

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Locate a Dealer

Tech Specs

Performance

Horsepower:

405 hp @ 5,600 rpm

Torque:

406 lb.-ft. @ 4,600 rpm

Max Rec RPM:

5,800 rpm

Internal Components

Crankshaft:

Forged steel, shot peened

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Hypereutectic aluminum

Intake Manifold:

Single plane aluminum

Rocker Arms:

Aluminum roller style

Engine Basics

Part Number:

19433042

Engine Type:

Chevy Small-Block

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt mains

Balanced:

External

Cylinder Head and Valves

Cylinder Heads (P/N 19417592):

Fast Burn aluminum; 62-cc chambers

Valve Size (in.):

2.000 intake / 1.550 exhaust

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

.474 intake / .510 exhaust

Camshaft Duration:

208° intake / 221° exhaust

Compression Ratio:

9.7:1 (nominal)

Rocker Arm Ratio:

1.5:1

Fuel and Ignition

Ignition Timing:

36° Total @ 4,000 rpm

Flexplate (P/N 14088765):

12.750”

Recommended Fuel:

Premium pump

Carburetor (P/N 19420445):

770 cfm Holley

Distributor (P/N 19432312):

HEI

View in 2025 Catalog
ZZ6 EFI Turnkey

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Reigning over the track — the innovative ZZ6 with electronic fuel injection.

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Reigning over the track — the innovative ZZ6 with electronic fuel injection.

Tech Specs

View in 2025 Catalog

Performance

Horsepower:

420 hp @ 5,800 rpm

Torque:

408 lb.-ft. @ 4,500 rpm

Max Rec RPM:

5,800

Internal Components

Crankshaft:

Forged steel, shot peened

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Hypereutectic aluminum

Camshaft Type:

Steel hydraulic roller

Rocker Arms:

Aluminum; roller-style

Engine Basics

Part Number:

19433044

Engine Type:

Chevy Small-Block V8

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt main caps

Balanced:

External

Measurements

Bore x Stroke:

4.000 in. x 3.480 in.

Valve Lift (in):

.474 intake / .510 exhaust

Camshaft Duration:

208° intake / 221° exhaust

Compression Ratio:

9.7:1

Rocker Arm Ratio:

1.5:1

Cylinder Head and Valves

Cylinder Heads:

Fast Burn aluminum; 62cc chambers

Valve Size (in):

2.000 intake / 1.550 exhaust

Fuel and Ignition

Ignition Timing:

36° total @ 4,000 rpm

Flexplate (P/N 14088765):

12.750”

Recommended Fuel:

Premium pump

Show Less

Locate a Dealer

Tech Specs

Performance

Horsepower:

420 hp @ 5,800 rpm

Torque:

408 lb.-ft. @ 4,500 rpm

Max Rec RPM:

5,800 rpm

Internal Components

Crankshaft:

Forged steel, shot peened

Connecting Rods:

Forged powder metal, shot peened

Pistons:

Hypereutectic aluminum

Camshaft Type:

Steel hydraulic roller

Rocker Arms:

Aluminum; roller-style

Engine Basics

Part Number:

19433044

Engine Type:

Chevy Small-Block V8

Displacement:

350 cu. in. (5.7L)

Block (P/N 19431835):

Cast iron with 4-bolt main caps

Balanced:

External

Cylinder Head and Valves

Cylinder Heads:

Fast Burn aluminum; 62cc chambers

Valve Size (in.):

2.000 intake / 1.550 exhaust

Measurements

Bore x Stroke:

4.000 in. x 3.480 in

Valve Lift (in):

.474 intake / .510 exhaust

Camshaft Duration:

208° intake / 221° exhaust

Compression Ratio:

9.7:1

Rocker Arm Ratio:

1.5:1

Fuel and Ignition

Ignition Timing:

36° Total @ 4,000 rpm

Flexplate (P/N 14088765):

12.750”

Recommended Fuel:

Premium pump

View in 2025 Catalog