Performance Specifications
Compression Ratio 10.7 : 1
Horsepower Rating 426-436 hp.
Torque Rating 420-428 ft./lbs.


Application Information
VIN 8th Digit
Year
Make
Model

2008-13
Chevrolet
Corvette (Base and Z51)
2009
Pontiac
G8 GXP
2010-13
Chevrolet
Corvette Grand Sport
2010-15
Camaro SS (with manual trans.)
2014-17
SS
N/A
2009-15
Holden
HSV
2015-17
Commodore VF
**The Corvette Grand Sport used a special version of the LS3. It had a dry sump oiling system and a modified crankshaft.**

**The Austrailian vehicles use a different format for Vehicle Identification Numbers (VIN). The 8th digit is NOT the engine code in an Austrailian VIN code.**

Engine Block Specifications

Block Part Number
12584724

Material
Aluminum

Casting Number
12621766

Displacement
6.2L / 376 c.i.d.

Bore Dia.
4.065 in.

Stroke
3.622 in.

Deck Height
9.240 in.

Bore Spacing
4.400 in.

Thrust Bearing Location
#3 Main

Main Cap Style
6-Bolt

Main Housing Bore Dia.
2.751 in.

Cam Housing Bore Dia.
Bore 1/5 = 2.346 in. Bore 2/4 = 2.326 in. Bore 3 = 2.307 in.

Cam-to-Crank Centerline
4.914 in.


Rotating Assembly Specifications

Engine Version
Wet Sump
Dry Sump

Piston Material
Hypereutectic Cast Aluminum Alloy

Piston Style
Flat Top

Piston Volume
0cc

Wrist Pin Dia.
0.9431 in. (Full Floating)

Connecting Rod Material
Powdered Metal

Connecting Rod Style
I-beam

Connecting Rod Length
6.098 in.

Connecting Rod Housing Bore
2.225 in.

Connecting Rod Bolts
M9 x 1 x 43

Connecting Rod P/N
12649190

Crankshaft Material
Cast Iron
Forged Steel

Crankshaft P/N
12597569
12630431

Crankshaft Rear Flange
6-Bolt

Crankshaft Main Journal Dia.
2.559 in.

Crankshaft Rod Journal Dia.
2.100 in.

Reluctor Wheel
58X


Cylinder Head Specifications

Casting Number
821

Material
Aluminum

Combustion Chamber Volume
70cc

Intake Port Shape
Rectangle

Intake Runner Volume
257cc

Exhaust Port Shape
D-Port

Exhaust Runner Volume
87cc

Intake Valve Dia.
2.165 in.

Exhaust Valve Dia.
1.590 in.

Cylinder Head Bolt Style
Torque to Yield (TTY)

Cylinder Head Bolt Size
(10) M11 x 2 x 100, (5) M8 x 1.25 x 45


Camshaft Specifications

Engine Version
Wet Sump
Dry Sump

Duration @ .050 in. (int./exh.)
204°/211°

Valve Lift (int./exh.)
0.551 in./.525 in.

Lobe Separation
117°

Camshaft P/N
12623066
12631811

Cam Gear Attachment
1-Bolt
3-Bolt

Cam Gear Poles
4X

Active Fuel Management (AFM)
No

Variable Valve Timing (VVT)
No


Valvetrain Specifications

Lifter Style
Hydraulic Roller

Lifter Link Style
Plastic Lifter Tray

Lifter Body Diameter
0.842 in.

Pushrod Length
7.385 in.

Rocker Arm Mounting Style
Pedestal

Rocker Arm Style
Die-Cast, Roller Fulcrum

Rocker Ratio
1.7

Rocker Offset
Intake Rocker, 6.25mm

Valve Spring Style
Beehive

Valve Spring Color
Natural

Valve Angle
15 degrees

Intake Valve Material
Steel, Hollow Stem

Intake Valve Dia.
2.165 in.

Exhaust Valve Material
Steel, Solid Stem

Exhaust Valve Dia.
1.590 in.

Timing Chain Guide Style
Spring Loaded Tensioner


Other Specifications

Intake Manifold
Car-Style

Throttle Body
90mm, 4-bolt, Gold Blade

Throttle Control
Electronic (Drive-by-Wire)

Fuel Injector P/N
12576341

Fuel Injector Flow
42 lb./hr. @ 58 psi

Flex Fuel Capable (E-85)
No

Fuel Injector Length (between O-rings)
1.500 in.

Fuel Injector Connector
EV6-USCAR

PCM
E38

Crankshaft Reluctor Ring
58X

Camshaft Sensor
Front mount, 4X

Oil Pan Sump Location
Varies by model

Oil Pump
Standard Volume (.96 c.i. per rev. @ 33 psi)

Oil Pump Part Number
12678151 (wet sump), 12623097 (dry sump)