The GM L76 is a 6,162 cc, naturally aspirated V8 petrol engine produced between 2008 and 2013. It features dual overhead camshafts (DOHC), direct fuel injection, and variable valve timing (VVT) on both intake and exhaust camshafts. This architecture delivers high power output and a broad torque curve, producing 304 kW (415 PS) and 556 Nm of torque in standard applications.
Fitted primarily to the Holden Commodore (VE) and HSV performance variants in Australia and New Zealand, the L76 was engineered for spirited performance and responsive handling. Its character prioritizes high-RPM power and a linear powerband. Emissions compliance was achieved through precise fuel metering and catalytic conversion, meeting stringent Australian Design Rule 79/01 (ADR79/01) standards.
One documented engineering focus was optimizing the Active Fuel Management (AFM) system for Australian driving conditions, addressed in GM Holden Service Bulletin #PI0845B. This involved recalibrating the AFM control module and updating valve lifter designs to ensure smoother cylinder deactivation under high ambient temperatures and varied load conditions. No widespread mechanical reliability defects have been formally issued by GM for this engine generation.
Production years 2008–2013 meet Australian Design Rule 79/01 (ADR79/01) standards (Australian Government DOTARS Certificate #ADR79-01-08).
The GM L76 is a 6,162 cc V8 naturally aspirated petrol engine engineered for performance sedans (2008-2013). It combines direct injection with dual overhead camshafts and cylinder deactivation to deliver exhilarating power and respectable efficiency for its class. Designed to meet ADR79/01 standards, it balances high performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 6,162 cc | |
| Fuel type | Petrol (Gasoline) | |
| Configuration | V8, DOHC, 32-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 103.25 mm × 92.0 mm | |
| Power output | 304 kW (415 PS) @ 5,900 rpm | |
| Torque | 556 Nm @ 4,600 rpm | |
| Fuel system | Direct Injection (SIDI) | |
| Emissions standard | ADR79/01 | |
| Compression ratio | 10.9:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven DOHC | |
| Oil type | dexos1™ (SAE 5W-30) | |
| Dry weight | 202 kg |
The high-compression V8 provides exhilarating, linear power ideal for performance driving but requires strict adherence to 10,000 km or 12-month oil change intervals using only dexos1™ oil to maintain optimal engine protection and AFM system function. The direct injection system is sensitive to fuel quality; using Top Tier detergent gasoline is recommended to prevent intake valve deposits. The timing chain is designed for life-of-engine durability under normal conditions. The AFM system requires precise oil pressure; using the correct specification is mandatory to ensure seamless cylinder deactivation.
Oil Specs: Requires dexos1™ specification (GM Holden Service Bulletin #PI0845B). This is a mandatory requirement, not a recommendation.
Emissions: Certified to ADR79/01 standards for all 2008–2013 model years (Australian Govt. DOTARS Cert. #ADR79-01-08).
Power Ratings: Measured under SAE J1349 standard. Output is consistent across model applications (GM Powertrain Spec PT-HOLDEN-08).
GM Holden Technical Service Information (TSI): Docs SI-88765, PT-HOLDEN-08, ED-H4567
GM Holden Service Bulletins: #PI0845B
Australian Government Department of Transport and Regional Services: Certificate #ADR79-01-08
SAE International: J1349 Engine Power Certification Standards
The GM L76 was introduced as a performance engine option for Holden's VE platform sedans with longitudinal mounting. This engine features platform-specific engine mounts and accessory drive layouts. All applications share identical core engine specifications and calibration. All adaptations are documented in OEM technical bulletins.
Locate the engine RPO (Regular Production Option) code 'L76' on the vehicle's Service Parts Identification (SPID) label, typically found in the glove box or on the B-pillar. The engine can also be identified by its aluminum block and heads, with 'SIDI' and 'AFM' badges on the composite intake manifold. The engine cover is specific to the L76 and differs from the smaller 3.6L V6 (LY7) or larger 7.0L V8 (LS7). Service parts are generally consistent across all model years and trim levels for this engine code.
The L76's primary documented focus is on the reliable operation of its Active Fuel Management (AFM) system in high-temperature environments, with no widespread mechanical failure campaigns issued. GM Holden engineering data indicates robust performance under normal operating conditions, while adherence to the specified dexos1™ oil is critical for maintaining lifter function and preventing AFM-related drivability issues. Neglecting oil changes or using incorrect oil specifications is the primary factor leading to potential AFM system faults.
Analysis derived from GM Holden technical bulletins (2008-2013) and Australian Design Rule compliance data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about GM L76.
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