LS CRATE ENGINES

The engine family commonly called the LS series debuted in 1997. General Motors called it the Gen-III Small-Block, with the iron-block versions in trucks and the all-aluminum LS1 introduced in the then-new C5 Corvette. GM has continued to refer to its modern V-8 engine family as Gen III and Gen IV, but to the enthusiasts who quickly grasped the tremendous performance potential of the engines, every engine of the platform is nicknamed “LS.” See how LS crate engines compare in horsepower, torque, and other technical specifications.

LS3

MORE INFO

LS376/480

MORE INFO

LS376/525

MORE INFO

Part Number

19301326

19301358  

19301360

Engine Type

LS-Series Gen-IV Small-Block V-8

LS-Series Gen-IV Small-Block V-8

LS-Series Gen-IV Small-Block V-8

Horsepower

430 hp @ 5900 rpm

495 hp @ 6200 rpm

525 hp @ 6200 rpm

Torque

425 lb-ft @ 4600 rpm

473 lb-ft @ 5200 rpm

486 lb-ft @ 5200 rpm

Displacement (cu. in.)

376 (6.2L)  

376 cu in (6.2L)

376 (6.2L)

Block

Cast-aluminum with 6-bolt, cross-bolted main caps

Cast-aluminum with 6-bolt, cross-bolted main caps

Cast aluminum with 6-bolt, cross-bolted main caps

Crankshaft

Nodular iron

Nodular iron

Nodular iron

Camshaft

Hydraulic roller

Hydraulic roller

Hydraulic roller

Valve Lift (intake)

.551 in

2.165 in

2.165 in

Valve Lift (exhaust)

.522 in

1.590 in

1.590 in

Camshaft Duration (@.050)

204° intake/211° exhaust

193° intake/200° exhaust

226° intake/236° exhaust

Cylinder Heads

Aluminum L92-style port; as cast with 68-cc chambers

Aluminum L92-style port; as cast with 68-cc chambers

Aluminum L92-style port; as cast with 68-cc chambers

Compression Ratio

10.7:1

10.7:1

10.7:1

L96

MORE INFO

LS3

MORE INFO

Part Number

19301326

19301326

Engine Type

LS-Series Gen-IV Small-Block V-8

LS-Series Gen-IV Small-Block V-8

Horsepower

430 hp @ 5900 rpm

430 hp @ 5900 rpm

Torque

425 lb-ft @ 4600 rpm

425 lb-ft @ 4600 rpm

Displacement (cu. in.)

376 (6.2L)  

376 (6.2L)  

Block

Cast-aluminum with 6-bolt, cross-bolted main caps

Cast-aluminum with 6-bolt, cross-bolted main caps

Crankshaft

Nodular iron

Nodular iron

Camshaft

Hydraulic roller

Hydraulic roller

Valve Lift (intake)

.551 in

.551 in

Valve Lift (exhaust)

.522 in

.522 in

Camshaft Duration (@.050)

204° intake/211° exhaust

204° intake/211° exhaust

Cylinder Heads

Aluminum L92-style port; as cast with 68-cc chambers

Aluminum L92-style port; as cast with 68-cc chambers

Compression Ratio

10.7:1

10.7:1

LS3

MORE INFO

LS376/480

MORE INFO

Part Number

19301326 

19301358 

Engine Type

LS-Series Gen-IV Small-Block V-8

LS-Series Gen-IV Small-Block V-8

Horsepower

430 hp @ 5900 rpm

495 hp @ 6200 rpm

Torque

425 lb-ft @ 4600 rpm

473 lb-ft @ 5200 rpm

Displacement (cu. in.)

376 cu in (6.2L)

376 cu in (6.2L)

Block

Cast-aluminum with 6-bolt, cross-bolted main caps

Cast-aluminum with 6-bolt, cross-bolted main caps

Crankshaft

Nodular iron

Nodular iron

Camshaft

Hydraulic roller

Hydraulic roller

Valve Lift (intake)

.551 in

2.165 in

Valve Lift (exhaust)

.522 in

1.590 in

Camshaft Duration (@.050)

204° intake/211° exhaust 

219° intake/228° exhaust

Cylinder Heads

Aluminum L92-style port; as cast with 68-cc chambers

Aluminum L92-style port; as cast with 68-cc chambers

Compression Ratio

10.7:1 

10.7:1

LS376/525

MORE INFO

Part Number

19301360 

Engine Type

LS-Series Gen-IV Small-Block V-8 

Horsepower

525 hp @ 6200 rpm

Torque

486 lb-ft @ 5200 rpm

Displacement (cu. in.)

376 cu in (6.2L)

Block

Cast-aluminum with 6-bolt, cross-bolted main caps

Crankshaft

Nodular iron

Camshaft

Hydraulic roller

Valve Lift (intake)

2.165 in

Valve Lift (exhaust)

1.590 in

Camshaft Duration (@.050)

226° intake/236° exhaust 

Cylinder Heads

Aluminum L92-style port; as cast with 68-cc chambers

Compression Ratio

10.7:1

VISIT OUR BRANDS FOR YOUR OE NEEDS

|

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.