Parts intended for competition use
Proposition 65
Gen IV LS Power
Gen IV LS Power
Parts intended for competition use
Proposition 65
Up to
638 hp
Up to
604 lb.-ft.
Up to
6,800
Max Rec RPM
Up to
376 cu. in. (6.2L)
Displacement
LS3 Engines
-
LS3
The trusted, rugged and reliable choice — with plenty of torque and horsepower.
Tech Specs
Performance
Horsepower:
430 hp @ 5,900 rpm
Torque:
425 lb.-ft. @ 4,600 rpm
Max Rec RPM:
6,600
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Investment-cast, roller trunnion
Engine Basics
Part Number:
19540155
Engine Type:
LS-Series Gen-IV Small-Block V-8
Displacement:
376 cu. in. (6.2L)
Block:
Cast aluminum with 6-bolt, cross-bolted main caps
Available Build Options:
Also available in Long Block
Balanced:
Internal
Measurements
Bore x Stroke:
4.065 in. x 3.622 in. (103.25 x 92mm)
Valve Lift (in):
.551 intake / .522 exhaust
Camshaft Duration (@.050 in):
204° intake / 211° exhaust
Compression Ratio:
10.7:1
Rocker Arm Ratio:
1.7:1
Cylinder Head and Valves
Cylinder Heads:
Aluminum L92-style port; as-cast with 68cc chambers
Valve Size (in.):
2.165 intake / 1.590 exhaust
Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
Show Less
Tech Specs
Performance
Horsepower:
430 hp @ 5,900 rpm
Torque:
425 lb.-ft. @ 4,600 rpm
Max Rec RPM:
6,600
Engine Basics
Part Number:
19540155
Engine Type:
LS-Series Gen-IV Small-Block V-8
Displacement:
376 cu. in. (6.2L)
Block:
Cast aluminum with 6-bolt, cross-bolted main caps
Available Build Options:
Also available in Long Block
Balanced:
Internal
Measurements
Bore x Stroke:
4.065 in. x 3.622 in. (103.25 x 92mm)
Valve Lift (in):
.551 intake / .522 exhaust
Camshaft Duration (@.050 in):
204° intake / 211° exhaust
Compression Ratio:
10.7:1
Rocker Arm Ratio:
1.7:1
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Investment-cast, roller trunnion
Cylinder Head and Valves
Cylinder Heads:
Aluminum L92-style port; as-cast with 68cc chambers
Valve Size (in.):
2.165 intake / 1.590 exhaust
Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
-
LS364/450
A popular builder's choice — LS6 camshaft and aluminum cylinder heads.
A popular builder's choice — LS6 camshaft and aluminum cylinder heads.
Tech Specs
Performance
Horsepower:
452 hp @ 5,600 rpm
Torque:
441 lb.-ft. @ 4,800 rpm
Max Rec RPM:
6,800
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
LS6 hydraulic roller
Rocker Arms:
Investment-cast, roller bearing trunnion
Engine Basics
Part Number:
19434650
Engine Type:
Performance LQ9 long-block
Displacement:
364 cu. in. (6.0L)
Block:
Cast iron with 6-bolt block, cross-bolted main caps
Balanced:
Internal
Measurements
Bore x Stroke:
4.000 x 3.622 in (101.6 x 92 mm)
Valve Lift (in):
.550 intake / .550 exhaust
Camshaft Duration (@.050 in):
204° intake / 218° exhaust
Compression Ratio:
10.3:1 (nominal)
Rocker Arm Ratio:
1.7:1
Cylinder Head and Valves
Cylinder Heads:
LS3 rectangular port; aluminum, as-cast with 68cc chambers
Valve Size (in.):
2.165 intake (hollow stem)
1.590 exhaust (solid stem)Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
24Xe
Show Less
Tech Specs
Performance
Horsepower:
452 hp @ 5,600 rpm
Torque:
441 lb.-ft. @ 4,800 rpm
Max Rec RPM:
6,800
Engine Basics
Part Number:
19434650
Engine Type:
Performance LQ9 long-block
Displacement:
364 cu. in. (6.0L)
Block:
Cast iron with 6-bolt block, cross-bolted main caps
Balanced:
Internal
Measurements
Bore x Stroke:
4.000 x 3.622 in (101.6 x 92 mm)
Valve Lift (in):
.550 intake / .550 exhaust
Camshaft Duration (@.050 in):
204° intake / 218° exhaust
Compression Ratio:
10.3:1 (nominal)
Rocker Arm Ratio:
1.7:1
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
LS6 hydraulic roller
Rocker Arms:
Investment-cast, roller bearing trunnion
Cylinder Head and Valves
Cylinder Heads:
LS3 rectangular port; aluminum, as-cast with 68cc chambers
Valve Size (in.):
2.165 intake (hollow stem)
1.590 exhaust (solid stem)Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
24Xe
-
LS376/480
A hot, racing-inspired camshaft on the LS3 — the best of both worlds.
A hot, racing-inspired camshaft on the LS3 — the best of both worlds.
Tech Specs
Performance
Horsepower:
495 hp @ 6,200 rpm
Torque:
473 lb.-ft. @ 5,000 rpm
Max Rec RPM:
6,600
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Investment-cast, roller trunnion
Engine Basics
Part Number:
19540156
Engine Type:
LS-Series Gen-IV Small-Block V-8
Displacement:
376 cu. in. (6.2L)
Block:
Cast-aluminum with 6-bolt block, cross-bolted main caps
Available Build Options:
Also available in Long Block
Balanced:
Internal
Measurements
Bore x Stroke:
4.065 in. x 3.622 in. (103.25 x 92mm)
Valve Lift (in):
.525 intake / .525 exhaust
Camshaft Duration (@.050 in):
219° intake / 228° exhaust
Compression Ratio:
10.7:1
Rocker Arm Ratio:
1.7:1
Cylinder Head and Valves
Cylinder Heads:
Aluminum L92-style port; as-cast with 68cc chambers
Valve Size (in.):
2.165 intake / 1.590 exhaust
Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
Show Less
Tech Specs
Performance
Horsepower:
495 hp @ 6,200 rpm
Torque:
473 lb.-ft. @ 5,000 rpm
Max Rec RPM:
6,600
Engine Basics
Part Number:
19540156
Engine Type:
LS-Series Gen-IV Small-Block V-8
Displacement:
376 cu. in. (6.2L)
Block:
Cast-aluminum with 6-bolt block, cross-bolted main caps
Available Build Options:
Also available in Long Block
Balanced:
Internal
Measurements
Bore x Stroke:
4.065 in. x 3.622 in. (103.25 x 92mm)
Valve Lift (in):
.525 intake / .525 exhaust
Camshaft Duration (@.050 in):
219° intake / 228° exhaust
Compression Ratio:
10.7:1
Rocker Arm Ratio:
1.7:1
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Investment-cast, roller trunnion
Cylinder Head and Valves
Cylinder Heads:
Aluminum L92-style port; as-cast with 68cc chambers
Valve Size (in.):
2.165 intake / 1.590 exhaust
Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
-
LS376/515
Pure muscle with a proven track record — designed to pair with carburetor models.
Pure muscle with a proven track record — designed to pair with carburetor models.
Tech Specs
Performance
Horsepower:
533 hp @ 6,600 rpm
Torque:
477 lb.-ft. @ 5,200 rpm
Max Rec RPM:
6,600
Internal Components
Crankshaft:
Nodular iron
Connecting Rods:
Powdered metal
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Investment-cast, roller trunnion
Engine Basics
Part Number:
19435102
Engine Type:
LS-Series Gen-IV Small-Block V-8
Displacement:
376 cu. in. (6.2L)
Block:
Cast-aluminum with 6-bolt block, cross-bolted main caps
Balanced:
Internal
Measurements
Bore x Stroke:
4.065 in. x 3.622 in.
Valve Lift (in):
.525 intake / .525 exhaust
Camshaft Duration (@.050 in):
226° intake / 236° exhaust
Compression Ratio:
10.7:1
Rocker Arm Ratio:
1.7:1
Cylinder Head and Valves
Cylinder Heads:
Aluminum L92-style port; as-cast with 68cc chambers
Valve Size (in.):
2.165 intake / 1.590 exhaust
Fuel and Ignition
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
Show Less
Tech Specs
Performance
Horsepower:
533 hp @ 6,600 rpm
Torque:
477 lb.-ft. @ 5,200 rpm
Max Rec RPM:
6,600
Engine Basics
Part Number:
19435102
Engine Type:
LS-Series Gen-IV Small-Block V-8
Displacement:
376 cu. in. (6.2L)
Block:
Cast-aluminum with 6-bolt block, cross-bolted main caps
Balanced:
Internal
Measurements
Bore x Stroke:
4.065 in. x 3.622 in.