Vehicle Applications

• 2008–2013 Chevrolet Corvette (Base and Z51)
• 2009 Pontiac G8 GXP
• 2010–2013 Chevrolet Corvette Grand Sport
• 2010–2015 Chevrolet Camaro SS (w/ Manual Trans)
• 2014–2017 SS
• 2009–2015 Holden HSV
• 2015–2017 Holden Commodore VF

Product Highlights

• Gen IV Aluminum Cylinder Block
• Rectangular Port Aluminum Cylinder Heads
• Advanced Electronic Throttle Control
• 58X Ignition Systems

LS3 Engine Specs (VIN "W")

The information listed here is for a stock engine.

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
W	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)