The Aston Martin LB6 is a 3,995 cc, V8 petrol engine produced between 2020 and 2025. It is a clean — sheet, in — house designed powerplant developed exclusively for the Valkyrie hypercar in collaboration with Cosworth. Featuring quad overhead camshafts (DOHC), 32 — valve configuration, and a 65° V — angle, it is engineered for extreme performance and high — RPM operation. In standard tune, it produces 563 kW (770 PS) at 10,500 rpm and 750 Nm of torque, with a redline of 11,100 rpm…
Road-legal Valkyrie models comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/7890); track-only AMR Pro variants are not emissions-certified.
The Aston Martin LB6 is a 3,995 cc V8 petrol engine engineered for hypercar performance (2020–2025). It features a compact 65° aluminum block, quad-cam 32-valve heads, and a flat-plane crankshaft to deliver extreme high-RPM power and track-focused responsiveness. Developed with Cosworth for the Valkyrie program, it meets motorsport durability standards while supporting road-legal emissions compliance in production form.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,995 cc | |
Fuel type | Petrol | |
Configuration | 65° V8, DOHC, 32-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 94.0 mm × 71.8 mm | |
Power output | 563 kW (770 PS) @ 10,500 rpm | |
Torque | 750 Nm @ 7,000 rpm | |
Fuel system | Direct injection, individual throttle bodies | |
Emissions standard | Euro 6d (road models); track-only exempt | |
Compression ratio | 14.0:1 | |
Cooling system | Dual-circuit water-cooled | |
Turbocharger | N/A | |
Timing system | Gear-driven (quad overhead camshafts) | |
Oil type | Red Line 5W-50 Racing Oil (Aston Martin Specification WSS-M2C950-A1) | |
Dry weight | 200 kg |
The Aston Martin LB6 was used exclusively in the Valkyrie series with rear-mid mounting and developed in partnership with Cosworth for FIA Hypercar compliance. This engine received application-specific calibrations-aerodynamic cooling ducting in the Valkyrie and revised oil management in the AMR Pro-and from 2022 the Valkyrie LMH adopted the LB6 Evo with increased displacement and revised cam profiles, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The LB6's primary reliability risk is oil surge under high lateral acceleration on pre-2021 units, with elevated incidence in circuit driving. Internal Aston Martin service reports from 2021 indicated transient oil pressure drops during sustained cornering, while FIA technical logs show related power interruptions in early AMR Pro events. Track-focused use and aggressive driving increase surge risk, making use of revised oil tank baffling critical.
Analysis derived from Aston Martin technical bulletins (2020-2024) and FIA technical inspection reports (2021-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The LB6 is highly robust when operated within design parameters, but pre-2021 models are prone to oil surge under high lateral loads. Later revisions (post-2021) improved oil tank baffling. Regular oil changes with correct 5W-50 specification and post-track inspections are essential. Well-maintained engines can exceed 30,000 km in road use or 500 hours in track service without major issues.
The most frequent issues are oil surge under high-G cornering (especially pre-2021), throttle body linkage wear, ignition coil failures at high RPM, and exhaust manifold cracking. These are documented in Aston Martin service bulletins and supported by Cosworth engineering reports from track programs.
The LB6 powers the Valkyrie (2020–2025) and Valkyrie AMR Pro (2021–2023). It was co-developed with Cosworth and is not used in any other production vehicle. Each application features model-specific tuning and oil management systems tailored to road or track use.
Limited tuning potential due to extreme factory calibration. ECU remapping can yield +10–15 kW gains safely. Mechanical upgrades (camshafts, intake) exist but are rare. Forced induction is not feasible due to block and head design. Tuning should preserve reliability and use race-grade fuel to prevent detonation.
Not applicable in traditional terms. The LB6 is optimized for track performance, not efficiency. In road-legal Valkyrie models, fuel consumption is approximately ~25 L/100km (city) and ~18 L/100km (highway), or 11 mpg UK combined. Real-world usage depends heavily on driving style and fuel type.
Yes. The LB6 is an interference engine. If the gear train fails or timing is lost, pistons will contact open valves, causing catastrophic damage. Gear-driven system is highly durable but requires expert servicing. Any timing work must be performed by authorized technicians using OEM tools.
Aston Martin specifies Red Line 5W-50 racing oil meeting WSS-M2C950-A1 standard. Oil must be changed every 10,000 km or 12 months. Using incorrect oil can accelerate bearing and gear wear due to extreme RPM and high-G loads inherent to the Valkyrie platform.
Comprehensive technical documentation and regulatory references
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ASTON-MARTIN Official Site
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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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