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 trims) and selected Z06 variants with accessory drive modifications, the LBS was engineered for high-rpm performance, improved combustion efficiency, and track-ready reliability. Emissions compliance was achieved through direct fuel injection, continuously variable cam phasing, and three-way catalytic converters, allowing it to meet U.S. Tier 2 Bin 5 and California LEV-II ULEV standards across all production years.
One documented concern is intake manifold port seal degradation under sustained high-load conditions, highlighted in GM Service Information Bulletin 15-06-04-001. This condition can lead to air/fuel imbalance and misfire codes. In 2016, GM revised the port seal material and updated inspection procedures to improve long-term sealing integrity.
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 LBS delivers high-rpm power ideal for spirited driving but requires adherence to 7,500–10,000 km oil change intervals using dexos1 5W-30 to maintain DFI system integrity. GM dexos1 oil is critical due to its shear stability and additive package protecting high-pressure fuel pumps and injectors. Sustained high-load operation can accelerate intake port seal wear, increasing risk of air/fuel imbalance. The intake manifold is prone to carbon buildup over time, especially with low-octane fuel, requiring periodic cleaning. Post-2016 models benefit from revised port seal design; high-mileage pre-2016 units should be inspected per GM SIB 15-06-04-001. Emissions systems require regular O2 sensor and catalytic converter checks to prevent DTCs.
Oil Specs: Requires GM dexos1 5W-30 specification (GM SIB 15-06-04-001). Supersedes API SN requirements.
Emissions: Tier 2 Bin 5 certification applies to all 2014–2019 models (EPA VCDB #VCDB-88312). No market-specific variances.
Power Ratings: Measured under SAE J1349 standards. Output verified with 93-octane fuel (GM TIS Doc. LBS-Power-2014).
General Motors Technical Information System (TIS): Docs LBS-Architecture-2014, LBS-Fuel-2014, SIB 15-06-04-001
EPA Vehicle Certification Database (VCDB-88312)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine ID code stamped on the right-side front cylinder bank near the exhaust manifold (GM TIS LBS-ID-001). The 8th VIN digit indicates engine type ('L' for LBS). Pre-2016 models have a black plastic intake manifold with red valve covers; post-2016 units use a revised intake seal design. Critical differentiation from LT1: LBS has direct fuel injection and a unique high-pressure fuel pump on the intake manifold. Service parts require VIN verification - intake port seals and fuel injectors are not interchangeable with non-DFI variants (GM SIB 15-06-04-001).
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.
Find answers to most commonly asked questions about CHEVROLET LBS.
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