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Parts intended for competition use only*

Proposition 65 Advertencia*

Chevrolet Performance Parts LSX Crate Engine

LS with an Iron Block Foundation

LS with an Iron Block Foundation

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Parts intended for competition use only*

Proposition 65 Advertencia*

A Yellow Horsepower Icon

Hasta

627 hp

Horsepower*

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

Hasta

586 lb-ft

Torque*

A Yellow Speedometer Icon

Hasta

7,100

Max Rec RPM

A Yellow Displacement Icon

Hasta

454 pulg. cúb. (7.4L)

Cilindrada

A Yellow Horsepower Icon

Hasta

627 hp

Horsepower*

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

Hasta

586 lb-ft

Torque*

A Yellow Speedometer Icon

Hasta

7,100

Max Rec RPM

A Yellow Displacement Icon

Hasta

454 pulg. cúb. (7.4L)

Cilindrada

LSX Engine

LSX376-B15

The ideal foundation for turbocharged or supercharged combinations.

View LSX376-B15

The ideal foundation for turbocharged or supercharged combinations.

View LSX376-B15

Especificaciones técnicas

View in 2025 Catalog

Desempeño

Caballos de fuerza:

473 HP a 6,000 rpm

Torque:

444 lb.-ft. @ 5,000 rpm

Max Rec RPM:

6,600

Internal Components

Cigüeñal:

Acero forjado

Bielas:

Forged powder metal

Pistones:

Aluminio forjado

Camshaft Type:

Rodillo hidráulico

Balancines:

Muñón giratorio moldeado por inversión

Engine Basics

Número de parte:

19417356

Tipo de motor:

Small-Block V-8 Gen IV serie LSX

Desplazamiento:

376 cu. in. (6.2L)

Bloque:

LSX de hierro fundido con tapas principales de 6 pernos cruzados

Balanceado:

Interno

Measurements

Bore x Stroke:

4.065 x 3.622 (103.25 x 92 mm)

Elevación de válvula (pulg.):

.560 de admisión / .555 de escape

Camshaft Duration (@ .050 in):

210° de admisión / 230° de escape

Relación de compresión:

9.0:1

Relación de balancín:

1.7:1

Cylinder Head and Valves

Culatas:

LSX-LS3 rectangular port; with “as-cast” 68cc chambers and a 6-bolt attachment

Tamaño de válvula (pulg.):

2.160 entrada / 1.550 escape

Fuel and Ignition

Combustible recomendado:

Regular pump

Rueda reluctora:

58x

Ver menos

Busca un concesionario

Especificaciones técnicas

Desempeño

Caballos de fuerza:

473 HP a 6,000 rpm

Torque:

444 lb.-ft. @ 5,000 rpm

Max Rec RPM:

6,600

Engine Basics

Número de parte:

19417356

Tipo de motor:

Small-Block V-8 Gen IV serie LSX

Desplazamiento:

376 cu. in. (6.2L)

Bloque:

LSX de hierro fundido con tapas principales de 6 pernos cruzados

Balanceado:

Interno

Measurements

Bore x Stroke:

4.065 x 3.622 (103.25 x 92 mm)

Elevación de válvula (pulg.):

.560 de admisión / .555 de escape

Camshaft Duration (@ .050 in):

210° de admisión / 230° de escape

Relación de compresión:

9.0:1

Relación de balancín:

1.7:1

Internal Components

Cigüeñal:

Acero forjado

Bielas:

Forged powder metal

Pistones:

Aluminio forjado

Camshaft Type:

Rodillo hidráulico

Balancines:

Muñón giratorio moldeado por inversión

Cylinder Head and Valves

Culatas:

LSX-LS3 rectangular port; with “as-cast” 68cc chambers and a 6-bolt attachment

Tamaño de válvula (pulg.):

2.160 entrada / 1.550 escape

Fuel and Ignition

Combustible recomendado:

Regular pump

Rueda reluctora:

58x

View in 2025 Catalog
LSX454

Torque like a big block, compact with fiery power from a small block.

View LSX454

Torque like a big block, compact with fiery power from a small block.

View LSX454

Especificaciones técnicas

View in 2025 Catalog

Desempeño

Caballos de fuerza:

627 HP a 6,300 rpm

Torque:

586 lb.-ft. @ 5,100 rpm

Max Rec RPM:

7,100

Internal Components

Cigüeñal:

Acero forjado 4340 con brida de cigüeñal de 8 pernos

Bielas:

Acero forjado 4340

Pistones:

Aluminio forjado

Camshaft Type:

Rodillo hidráulico

Balancines:

Muñón giratorio moldeado por inversión

Engine Basics

Número de parte:

19417357

Tipo de motor:

Small-Block V-8 Gen IV serie LSX

Desplazamiento:

454 cu. in. (7.4L)

Bloque:

LSX de hierro fundido con tapas principales de 6 pernos cruzados

Balanceado:

Interno

Measurements

Bore x Stroke:

4.185 in. x 4.125 in. (106.3 x 104.8 mm)

Elevación de válvula (pulg.):

.648 de admisión / .648 de escape

Camshaft Duration (@ .050 in):

236° de admisión / 246° de escape

Relación de compresión:

11.0:1

Relación de balancín:

1.8:1

Cylinder Head and Valves

Culatas:

Aluminum LSX-LS7 port; with “as cast” 70cc chambers

Tamaño de válvula (pulg.):

2.200 admisión de titanio / 1.610 de escape, hueco con sodio

Fuel and Ignition

Combustible recomendado:

Bomba premium

Rueda reluctora:

58x

Ver menos

Busca un concesionario

Especificaciones técnicas

Desempeño

Caballos de fuerza:

627 HP a 6,300 rpm

Torque:

586 lb.-ft. @ 5,100 rpm

Max Rec RPM:

7,100

Engine Basics

Número de parte:

19417357

Tipo de motor:

Small-Block V-8 Gen IV serie LSX

Desplazamiento:

454 cu. in. (7.4L)

Bloque:

LSX de hierro fundido con tapas principales de 6 pernos cruzados

Balanceado:

Interno

Measurements

Bore x Stroke:

4.185 in. x 4.125 in. (106.3 x 104.8 mm)

Elevación de válvula (pulg.):

.648 de admisión / .648 de escape

Camshaft Duration (@ .050 in):

236° de admisión / 246° de escape

Relación de compresión:

11.0:1

Relación de balancín:

1.8:1

Internal Components

Cigüeñal:

Acero forjado 4340 con brida de cigüeñal de 8 pernos

Bielas:

Acero forjado 4340

Pistones:

Aluminio forjado

Camshaft Type:

Rodillo hidráulico

Balancines:

Muñón giratorio moldeado por inversión

Cylinder Head and Valves

Culatas:

Aluminum LSX-LS7 port; with “as cast” 70cc chambers

Tamaño de válvula (pulg.):

2.200 admisión de titanio / 1.610 de escape, hueco con sodio

Fuel and Ignition

Combustible recomendado:

Bomba premium

Rueda reluctora:

58x

View in 2025 Catalog

#LSSWAPTHEWORLD

Stories from iconic builders and their LSX-inspired builds.

“

[The LSX] was competitive so we . . . started bringing it to the events."

Mike Maciejack

“Ruckus” 1987 Chevrolet R10

Mike Maciejack Stands in Front of a Chevy Pickup Truck on a Racetrack

“

This one’s fun because it’s just pure American muscle."

Brad & Doug DeBerti

“C10 Slayer” 1965 Chevrolet C10

Two Men Pose in Front of a Chevy Vehicle at a Trade Show

“

I wanted to pay tribute to what it was, but in a modern way."

Jimmy & Jim Miller 

1981 Pontiac Firebird Trans Am 

Two Men Pose in Front of a Yellow Chevy Sports Car

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

Decades of Building Performance

A look back at the LS, LSX y LT Engine Family Histories.

Ver línea de tiempo

View of a Chevrolet Performance Parts Crate Engine with a Red Paintjob on Top Housed in a Red GM Vehicle's Engine Bay

Featured Event

The Best Engines of Holley LS Fest East 2024

Paquetes de motor y transmisión

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

A Chevrolet Performance Parts Connect and Cruise Powertrain System

A Close-up Photo of Talbert Goldman Wearing Shades and a Baseball Cap

"It simplifies the whole project. If you have any issues, you plug into it, and you work on it and go from there. Hace que sea muy simple”.

Talbert Goldman
Mike Goldman Customs

Assemble the Dream Powertrain System

Compatible transmissions and components for LSX models.

Build confidently with Chevrolet Performance installation guides.

LSX376-B15

LSX454

Find dealers ready to help you with Chevrolet Performance Parts.

Busca un concesionario

Exterior View of a Chevrolet Dealership with Classic Chevy Vehicles on Display in the Parking Lot and a Crowd of People

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Motores

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