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L99 Vortec 6.2L
V8 "GEN IV"
Vehicle Applications
- 2010–2015 Chevrolet Camaro SS (w/ Auto Trans)
Product
Highlights
- Gen
IV Aluminum Cylinder Block
- Rectangular Port Aluminum Cylinder Heads
- Variable Valve Timing (VVT)
- Active Fuel Management (AFM) / Displacement on Demand (DOD)
- Advanced
Electronic Throttle Control
- 58X Ignition Systems
L99 Engine Specs (VIN "J")
The information listed here is for a stock engine.
Performance Specifications |
|
| Compression Ratio | 10.4 : 1 |
| Horsepower Rating | 400 hp. |
| Torque Rating | 410 ft./lbs. |
Application Information |
|||
VIN 8th Digit |
Year |
Make |
Model |
J |
2010-15 |
Chevrolet |
Camaro SS (with auto trans.) |
Engine Block Specifications |
|
| Casting Number |
12584724 |
| Material | Aluminum |
| 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 |
|
| Piston Material | Hypereutectic Cast Aluminum Alloy |
| Piston Style | Flat Top, with valve reliefs |
| Piston Volume | +3cc |
| 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 |
| Crankshaft P/N | 12588612 |
| Crankshaft Main Journal Dia. | 2.559 in. |
| Crankshaft Rod Journal Dia. | 2.100 in. |
| Reluctor Wheel | 58X |
Cylinder Head Specifications |
|
| Casting Number | 823 |
| 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 |
|
| Camshaft P/N | 12623066 |
| Duration @ .050 in. (int./exh.) |
195°/201° |
| Valve Lift (int./exh.) |
0.500 in./.492 in. |
| Lobe Separation |
115° |
| Cam Gear Attachment |
1-Bolt |
| Cam Gear Poles | 4X |
| Active Fuel Management (AFM) |
Yes |
| Variable Valve Timing (VVT) |
Yes |
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 |
| Valve Spring Style |
Beehive |
| Valve Spring Color |
Natural |
| Valve Angle |
15 degrees |
| Intake Valve Material |
Steel, Solid 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 |
Center Sump |
| Oil Pump |
High Volume (1.25 c.i. per rev. @ 33 psi) |
L99 Harnesses
