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LS9 Vortec 6.2L
V8 "GEN IV"
Vehicle Applications
- 2009–2013 Chevrolet Corvette ZR1
Product
Highlights
- Gen
IV Aluminum Cylinder Block
- Rectangular Port Aluminum Cylinder Heads
- Roots
Style Supercharger (2.3L Displacement)
- Advanced
Electronic Throttle Control
- 58X Ignition Systems
LS9 Engine Specs (VIN "T")
The information listed here is for a stock engine.
|
Performance Specifications |
|
| Compression Ratio | 9.1 : 1 |
| Horsepower Rating | 638 hp. @ 6300 rpm |
| Torque Rating | 604 ft./lbs. |
|
Application Information |
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VIN 8th Digit |
Year |
Make |
Model |
|
T |
2009-13 |
Chevy |
Corvette ZR1 |
|
Engine Block Specifications |
|
| Block P/N |
12621983, 12623969 |
| Material |
319-T7 aluminum |
| Block Casting Number |
12621766 |
| Displacement |
6.2L / 376 c.i.d. |
| Bore |
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, Billet Steel |
| 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. |
| Piston Oil Squirters |
Yes |
| Head Bolts |
M12 |
|
Rotating Assembly Specifications |
|
| Piston Material |
Forged aluminum alloy (with anti-friction coating and anodized top ring groove) |
| Piston P/N |
19180414 |
| Piston Style |
Dished, without valve reliefs |
| Piston Volume |
+15cc |
| Wrist Pin Dia. |
0.984 in. |
| Connecting Rod P/N |
12624231 |
| Connecting Rod Material |
Titanium, Moly-coated |
| Connecting Rod Weight |
452-482g |
| Connecting Rod Style |
I-beam |
| Connecting Rod Length |
5.990 in. |
| Connecting Rod Housing Bore |
2.225 in. |
| Connecting Rod Bolts |
M9 x 1 x 40 |
| Crankshaft Material |
Forged Steel, 46MnVS |
| Crankshaft P/N |
12598610 (2009-11), 12641693 (2011-15) |
| Crankshaft Rear Flange |
9-bolt |
| Crankshaft Snout |
Long, with keyway |
| Crankshaft Main Journal Dia. |
2.559 in. |
| Crankshaft Rod Journal Dia. |
2.100 in. |
| Reluctor Wheel |
58X |
|
Cylinder Head Specifications |
|
| Cylinder Head P/N |
12621773 |
| Casting Number |
1771 |
| Material |
356-T6 Rotocast Aluminum |
| Combustion Chamber Volume |
69.8cc |
| Intake Port Shape |
Rectangle |
| Intake Runner Volume |
259cc |
| Exhaust Port Shape |
D-port |
| Exhaust Runner Volume |
89cc |
| Valve Seat Material (int./exh.) |
PMF28 / Brico 3220 |
| Cylinder Head Bolt Style |
Torque to Yield (TTY) |
| Cylinder Head Bolt Sizes |
(10) M12 x 1.75 x 107 (P/N 11610590) |
|
(5) M8 x 1.25 x 45 (P/N 12558840) |
|
| Head Gasket P/N |
12622033 |
| Head Gasket Compressed Thickness |
0.055 in. |
|
Camshaft Specifications |
|
|
Camshaft P/N |
126384277 |
| Duration @ .050 in. (int./exh.) |
211°/230° |
| Valve Lift (int./exh.) |
0.562 in./0.558 in. |
| Lobe Separation |
122.5° |
| Cam Gear Attachment |
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 Dia. |
0.842 in. |
| Pushrod Length |
7.385 in. |
| Pushrod Diameter |
0.3125 in. |
| Rocker Arm Mounting Style |
Pedestal |
| Rocker Arm Style |
Die-cast, roller fulcrum |
| Rocker Ratio |
1.7 |
| Rocker Offset |
Intake only |
| Valve Spring Style |
Beehive |
| Valve Spring Seat Pressure |
90 lbs. @ 1.800 in. |
| Valve Spring Open Pressure |
295 lbs. @ 1.250 in. |
| Valve Spring Color |
Natural |
| Valve Angle |
15 degrees |
| Intake Valve Material |
Titanium, with Chrome Nitride |
| Intake Valve Dia. |
2.165 |
| Exhaust Valve Material |
Stainless steel, Sodium Filled |
| Exhaust Valve Dia. |
1.590 |
| Timing Chain P/N |
12646386 |
| Timing Chain Guide Style |
Wedge Shaped Plastic Dampener |
|
Supercharger Specifications |
||
| Supercharger P/N |
19244103 (solid coupler) R2300 |
|
| Displacement |
2.3L |
|
| Supercharger drive |
2.32 Drive Ratio, 15,080 Rpm, 9.4 Lbs. boost |
|
| Rotor Dimensions |
4.400 diameter, 8.300 Length, 160 Degree |
|
| Pulley Diameter |
3.100 in. upper / 7.330 in. lower |
|
|
Other Specifications |
|
| Intake Manifold |
Cast Aluminum, with integrated intercooler |
| Throttle Body |
87mm |
| Throttle Control |
Electronic (Drive-by-Wire) |
| ECM |
E67 |
| Fuel Injector P/N |
12598646 |
| Fuel Injector Flow |
52 lb/hr @ 58 psi |
| Flex Fuel Capable (E-85) |
No |
| Fuel Injector Length (between O-rings) |
1.500 in. |
| Fuel Injector Connector |
EV6 / USCAR |
| Camshaft Sensor Location |
Timing Cover |
| Oiling System |
Dry Sump |
| Oil Pan |
Center Sump (with a bolt-on cooler) |
| Oil Pump P/N |
12578147 |
| Oil Pump Volume |
32.3 gpm |