The 6.0L V-8 LC8 is a dedicated Compressed Natural Gas (CNG) and Liquid Petroleum Gas (LPG) (vans only) version of the L96 engine. Intake flow was improved over previous engines by straightening out and optimizing the flow path from the intake manifold into the cylinder heads, while the exhaust ports are designed for greater flow. The engine’s efficiency also optimizes emissions performance.

The 6.0L is powerful, but delivers exceptional refinement with great strength. Quiet features built into the engine are complemented by an improved engine cradle and mounting system. These help reduce vibrations transmitted through the chassis and into the passenger compartment.

6.0L LC8 Features & Specifications

6.0L LC8 Tech Specs
Type: 6.0L Gen IV V-8 Small Block
Displacement: 5967 cc
Engine Orientation: Longitudinal
Compression Ratio: 9.7:1
Valve Configuration: Overhead valves
Valves per Cylinder: 2
Assembly Sites: Silao, Mexico
Valve Lifters: Hydraulic roller
Firing Order: 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x Stroke: 101.6 x 92 mm
Fuel System: Sequential Fuel Injection
Fuel Type: Regular Unleaded, CNG, LPG
Horsepower: 360 hp (268 kW) @ 5400 rpm*
301 hp (225 kW) @ 5000 rpm**
332 hp (248 kW) @ 4800 rpm***
Torque: 380 lb-ft ( 515 Nm ) @ 4200 rpm*
333 lb-ft ( 452 Nm ) @ 4200 rpm**
370 lb-ft ( 501 Nm ) @ 4400 rpm ***
Maximum Engine Speed: 6000 rpm (Silverado)
Emissions Controls: Catalytic converter, Three-way catalyst, Positive crankcase ventilation
Block: Cast iron
Cylinder Head: Cast aluminum
Intake Manifold: Composite
Exhaust Manifold: Cast nodular iron
Main Bearing Caps: Powder metal
Crankshaft: Cast nodular iron with undercut and rolled fillets
Camshaft: Hollow steel
Connecting Rods: Powder metal