The Chevrolet LBS is a 6.2 L (6,162 cc), naturally aspirated V8 engine produced between 2014 and 2019. It features General Motors' Variable Valve Timing (VVT) and a cast — iron block with aluminum heads, delivering 420 hp (313 kW) and 450 lb — ft (610 Nm) of torque. The LBS is part of the Gen V Small Block family, introduced as the standard high — output engine in the sixth — generation Chevrolet Corvette (C7) Stingray.
Fitted exclusively to the Chevrolet Corvette C7 (2LT, 3LT trim…
Production years 2014–2019 meet U.S. EPA Tier 2 Bin 5 and California LEV-II ULEV standards (EPA Vehicle Certification Database #VCDB-88312).
The Chevrolet LBS is a 6,162 cc V8 engineered for high-performance sports cars and track applications (2014–2019). It combines direct fuel injection with dual independent variable cam timing to deliver linear power delivery and improved throttle response. Designed to meet U.S. Tier 2 Bin 5 emissions, it balances aggressive performance with daily usability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 6,162 cc (6.2 L) | |
Fuel type | Gasoline (93 octane recommended) | |
Configuration | 90° V8, OHV, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 103.25 mm × 92.0 mm | |
Power output | 313 kW (420 hp) @ 6,000 rpm | |
Torque | 610 Nm (450 lb-ft) @ 4,400 rpm | |
Fuel system | Direct fuel injection (DFI) | |
Emissions standard | U.S. Tier 2 Bin 5, LEV-II ULEV | |
Compression ratio | 11.5:1 | |
Cooling system | Water-cooled, dual-thermostat | |
Turbocharger | Not applicable | |
Timing system | Dual-row roller chain (front-mounted) | |
Oil type | GM dexos1 5W-30 | |
Dry weight | 205 kg |
The Chevrolet LBS was used across Chevrolet's C7 Corvette platform with transverse mounting and designated for high-performance applications. This engine received platform-specific adaptations-tuned intake manifolds in the 2LT variant and revised accessory drives in the Z06-and from 2016 the Grand Sport model introduced enhanced cooling, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The LBS's primary reliability risk is intake port seal degradation under sustained high-load conditions, with elevated incidence in track-driven or high-mileage units. GM internal field reports from 2017 indicated a notable number of pre-2016 units required port seal service before 120,000 km, while NHTSA data links a portion of engine-related complaints to DFI system faults. Extended high-RPM operation and infrequent oil changes increase injector and pump wear, making oil quality and interval adherence critical.
Analysis derived from GM technical bulletins (2014–2019) and NHTSA failure statistics (2015–2020). Repair procedures should follow manufacturer guidelines.
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The LBS is generally robust with strong internals, but pre-2016 models are prone to intake port seal issues if maintenance is deferred. Later revisions improved seal durability. When maintained with regular oil changes using dexos1 5W-30 and driven under normal conditions, the LBS can reliably exceed 150,000 km. DFI system health is the primary longevity factor.
The most documented issues are intake port seal degradation, high-pressure fuel pump failure, throttle body motor wear, and coolant crossover leaks. These are confirmed in GM service bulletins and NHTSA filings. Preventive maintenance significantly reduces risk of major repairs.
The LBS was used exclusively in the 6th-generation Chevrolet Corvette C7 (2014–2019) with 2LT/3LT trims and in the Corvette Z06 (2015–2019). It was not used in Camaro, trucks, or other GM vehicles. The LT1 was used in base-trim Corvettes.
Yes. The LBS responds well to ECU tuning, with safe gains of +30–50 hp on stock internals using 93-octane fuel. Aftermarket camshafts, intake, and exhaust can further increase output. However, aggressive tuning may accelerate port seal and fuel pump wear. Tuning should preserve fuel trims and DFI functionality for longevity.
Official EPA ratings are 16 mpg (14.7 L/100km) city and 28 mpg (8.4 L/100km) highway. Real-world mixed driving typically yields 20–24 mpg (11.8–9.8 L/100km). DFI contributes to improved combustion efficiency. Aggressive driving reduces economy significantly due to the large displacement and high-RPM character.
Yes. The LBS is an interference engine. If the timing chain fails, the pistons will contact the valves, resulting in catastrophic internal damage. Timing chain replacement is recommended at high mileage to prevent breakdowns and secondary damage.
GM specifies dexos1 5W-30 synthetic oil for all LBS engines. Oil changes should be performed every 7,500–10,000 km. Using non-dexos1 oil may compromise DFI system performance and void powertrain coverage. High-mileage variants may benefit from 10W-30 in hot climates.
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