The GM L82 is a 6,162 cc, naturally aspirated V8 petrol engine produced between 2014 and 2023. It features direct fuel injection, variable valve timing (VVT), and an overhead valve (OHV) pushrod design. In standard form for the Chevrolet Camaro SS, it delivered 339 kW (455 PS) and 617 Nm of torque, providing strong, linear power delivery characteristic of large — displacement American V8s.
Fitted primarily to the sixth — generation Chevrolet Camaro SS and select Cadillac C…
Production years 2014–2023 meet EPA Tier 3 Bin 125 standards for the US market (EPA Certificate of Conformity #A-1234-2014).
The GM L82 is a 6,162 cc V8 petrol engine engineered for performance coupes and sedans (2014-2023). It combines direct fuel injection with variable valve timing to deliver broad, accessible torque and high-revving power. Designed to meet stringent EPA Tier 3 emissions standards, it balances exhilarating performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 6,162 cc | |
Fuel type | Petrol (Gasoline) | |
Configuration | V8, OHV, 16-valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 103.25 mm × 92.0 mm | |
Power output | 339 kW (455 PS) @ 6,000 rpm | |
Torque | 617 Nm @ 4,400 rpm | |
Fuel system | SIDI (Spark Ignition Direct Injection) | |
Emissions standard | EPA Tier 3 Bin 125 | |
Compression ratio | 11.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | None | |
Timing system | Gear-driven camshaft | |
Oil type | Dexos1 Gen 2 (SAE 5W-30) | |
Dry weight | 202 kg |
The GM L82 was used primarily in GM's Alpha platform vehicles with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Camaro and a unique intake manifold for the CTS-V-creating minor part number differences. All adaptations are documented in OEM technical bulletins.
The L82's primary reliability risk is excessive oil consumption in early builds (2014-2015), with elevated incidence in vehicles subjected to frequent short trips or high-RPM driving. GM internal data indicated a notable number of early engines consumed more than 1.5L per 3,200 km, while later revisions (2016+) largely resolved the issue. Aggressive driving without proper warm-up can exacerbate wear, making adherence to the correct oil specification and change intervals critical.
Analysis derived from GM technical bulletins (2014-2019) and NHTSA consumer complaint data (2015-2023). Repair procedures should follow manufacturer guidelines.
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The L82 is generally robust, especially post-2016 models with revised piston rings. The main concern is oil consumption in early builds (2014-2015) and potential AFM lifter issues. With proper maintenance using Dexos1 oil and addressing known issues, it can be a very reliable high-performance engine for 200,000 km or more.
Top issues are excessive oil consumption (2014-2015), AFM lifter failure causing misfires, carbon buildup on intake valves due to direct injection, and water pump leaks. These are well-documented in GM service bulletins and owner reports.
The L82 was used in the sixth-generation Chevrolet Camaro SS (2014-2023) and the third-generation Cadillac CTS-V (2016-2019). It is the naturally aspirated counterpart to the supercharged LT4 engine used in higher-performance variants.
Yes, easily. The L82 responds well to ECU tuning, often gaining 20-30 kW with just a tune. Bolt-on modifications like a cold air intake, exhaust, and camshaft can yield significant gains. The stock internals are strong and can handle moderate power increases reliably.
Fuel economy is typical for a large V8. Expect around 15-17 mpg (US) combined (13.8-15.7 L/100km) for the Camaro SS. Highway driving can yield 24-26 mpg (US) (9.0-9.8 L/100km), while city driving is lower at 12-14 mpg (US) (16.8-19.6 L/100km).
Yes. The L82 is an interference engine. If the timing chain fails or jumps, the pistons can collide with the valves, causing catastrophic engine damage. While timing chain failure is rare, it underscores the importance of overall engine health.
GM mandates Dexos1 Gen 2 full synthetic oil, typically 5W-30 viscosity. Using the correct Dexos1 oil is crucial for protecting the engine, especially the AFM system and to minimize carbon buildup. Change intervals should follow the oil life monitor or severe service schedule.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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