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L86 6.2L
V8 "GEN V"
Vehicle Applications
- 2015+ Cadillac Escalade
- 2014+ Chevrolet Silverado
- 2014+ GMC Sierra
- 2015+ GMC Yukon / XL
Product
Highlights
- Gen V
Aluminum Cylinder BlocK
- Direct Fuel Injection
- Variable Valve TIming (VVT)
- Active Fuel Management (AFM)
- E85 Flex-Fuel Capability
- Advanced
Electronic Throttle Control
- 58X Ignition Systems
L86 Engine Specs (VIN "J")
The information listed here is for a stock engine.
| Performance Specifications |
|
| Compression Ratio |
11.5:1 |
| Horsepower Rating |
420 hp @ 5,600 rpm |
| Torque Rating |
460 ft.-lbs. @ 4,100 rpm |
| Application Information |
|||
| VIN 8th Digit |
Year | Make | Model |
| J | 2015-present | Cadillac | Escalade |
| 2014-present | Chevrolet | Silverado | |
| 2014-present | GMC | Sierra | |
| 2015-present | Yukon / XL | ||
| Engine Block Specifications |
|
| Part Number |
12619171 |
| Material | 319-T7 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, 1/2 thrust |
| 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. |
| Oil Squirters |
8 |
| Rotating Assembly Specifications |
|
| Piston Material |
Hypereutectic Cast Aluminum Alloy |
| Piston Style |
Domed (with reliefs for the exhaust valve and direct injector) |
| Piston Volume |
0.6cc (net) |
| 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 Part Number |
12654242 |
| Crankshaft Material |
1538MV Forged Steel |
| Crankshaft Part Number (Wet Sump) |
12623492 |
| Crankshaft Main Journal Dia. |
2.559 in. |
| Crankshaft Rod Journal Dia. |
2.100 in. |
| Reluctor Wheel |
58X |
| Harmonic Balancer |
Iron |
| Cylinder Head Specifications |
|
| Part Numbers |
12678633, 12620544, 12620545 |
| Casting Numbers |
12620549 |
| Material | 319-T7 Aluminum |
| Combustion Chamber Volume |
59.02cc |
| Intake Port Shape |
Rectangle |
| Intake Runner Volume |
297cc |
| Intake Manifold Bolt Pattern |
LT1 Specific |
| Exhaust Port Shape |
Flat Oval |
| Exhaust Runner Volume |
107cc |
| Cylinder Head Bolt Style |
Torque to Yield (TTY) |
| Cylinder Head Bolt Size |
(10) M12 x 1.75, M8 corner bolts |
| Camshaft Specifications |
||
| Part Number |
12629512 | |
| Duration @ .050 in. (int./exh.) |
200°/207° | |
| Valve Lift (int./exh.) |
0.551 in./0.524 in. |
|
| Lobe Separation |
116.5° | |
| 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 Dia. |
0.842 in. |
| Pushrod Dimensions |
7.85 in. (long) x 0.342 (dia.) |
| Rocker Arm Mounting Style |
Pedestal |
| Rocker Arm Style |
Die-Cast, Roller Fulcrum |
| Rocker Ratio |
1.8 |
| Rocker Offset |
None |
| Valve Spring Style |
Beehive |
| Valve Spring Color |
Natural |
| Intake Valve Angle |
12.5° / Splayed 2.61° |
| Exhaust Valve Angle |
12.0° / Splayed 2.38° |
| Intake Valve Material |
Steel, Hollow Stem |
| Intake Valve Dia. |
2.126 in. |
| Exhaust Valve Material |
Steel, Sodium Filled |
| Exhaust Valve Dia. |
1.590 in. |
| Timing Chain Guide Style |
Spring Loaded Tensioner |
| Other Specifications |
||
| Intake Manifold |
Truck style |
|
| Throttle Body |
87mm, 4-bolt |
|
| Throttle Control |
Electronic (Drive-by-Wire) |
|
| Fuel Injector P/N |
12656931 | |
| Fuel Injector Flow |
123 lbs./hr. (2,205 max psi) |
|
| Flex Fuel Capable (E-85) |
Yes | |
| Computer | E92 | |
| Crankshaft Reluctor Ring |
58X | |
| Camshaft Sensor Location |
Timing Cover |
|
| Oil Pan Capacity |
8 qt. |
|
| Oil Pump (Wet Sump) |
Variable Displacement |
|
L86 Harnesses
