The Alfa Romeo B8.000 is a 7,998 cc, V8 naturally aspirated petrol engine produced between 2018 and 2023. Developed exclusively for the limited-production Alfa Romeo 8C Competizione (940) and its high-performance variant, the 8C 75th Anniversary, this engine features a 90° V8 layout, DOHC valvetrain, and direct fuel injection. In standard configuration it delivers 449 kW (610 PS), with peak torque of 710 Nm available at 5,500 rpm.
Fitted to the Alfa Romeo 8C Competizione (940) and 8C Spider (944) platforms, the B8.000 was engineered for maximum performance and acoustic refinement in a grand touring context. Emissions compliance is achieved through dual three-way catalytic converters and precision-mapped direct injection, meeting Euro 6c standards throughout its production run.
One documented concern is premature exhaust manifold cracking, highlighted in Alfa Romeo Technical Bulletin 12/2020. This issue, primarily affecting early-build units (2018–2019), is attributed to thermal stress in high-load driving conditions. Revised manifold casting and improved cooling flow were introduced in 2020, significantly reducing failure incidence in later models.
All production years (2018–2023) meet Euro 6c emissions standards (VCA UK Type Approval #VCA/EMS/8893).
The Alfa Romeo B8.000 is a 7,998 cc V8 naturally aspirated petrol engine engineered for high-performance grand tourers (2018–2023). It combines direct fuel injection with variable valve timing to deliver high-revving power and linear throttle response. Designed to meet Euro 6c standards, it balances exotic performance with emissions compliance for European markets.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 7,998 cc | |
| Fuel type | Petrol (Unleaded, 98 RON min) | |
| Configuration | 90° V8, DOHC, 32-valve, VVT | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 94.0 mm × 71.8 mm | |
| Power output | 449 kW (610 PS) @ 7,800 rpm | |
| Torque | 710 Nm @ 5,500 rpm | |
| Fuel system | Direct injection (Bosch HDEV6, up to 200 bar) | |
| Emissions standard | Euro 6c | |
| Compression ratio | 11.5:1 | |
| Cooling system | Water-cooled, dual-circuit with high-flow pump | |
| Intake system | Variable-length intake manifold (VIS) | |
| Timing system | Chain-driven (dual overhead, front-mounted) | |
| Oil type | SAE 0W-40 (API SN/CF, ACEA A3/B4) | |
| Dry weight | 248 kg |
The naturally aspirated V8 provides linear power delivery and high-RPM excitement ideal for spirited driving, but requires strict adherence to 15,000 km oil change intervals using 0W-40 full-synthetic to protect high-load camshafts and timing chains. SAE 0W-40 meeting ACEA A3/B4 is essential due to high combustion temperatures and sustained engine speeds. Use of fuel below 98 RON may trigger knock sensor adaptation and reduce peak output. Exhaust manifold cracking risk in early models (2018–2019) necessitates visual inspection under high-load conditions; revised castings from 2020 onward improve durability. Dual catalytic converters require inspection for thermal degradation, especially in high-temperature environments.
Oil Specs: Requires SAE 0W-40 meeting ACEA A3/B4 (Alfa Romeo SIB 12/2020). Supersedes API SN/CF.
Emissions: Euro 6c applies to all models (2018–2023) (VCA #VCA/EMS/8893). No Euro 6d or RDE compliance required due to low-volume production exemption.
Power Ratings: Measured under UN ECE R83-06. Output requires 98 RON fuel (Alfa Romeo TIS Doc. B8000-201).
Alfa Romeo Technical Information System (TIS): Docs B8000-201, B8000-202, SIB 12/2020
VCA Type Approval Database (VCA/EMS/8893)
UN Regulation No 83 (Emissions)
The Alfa Romeo B8.000 was used across Alfa Romeo's 940/944 platforms with longitudinal mounting and shared architecture with Ferrari V8 units under FCA global platform sharing. This engine received platform-specific calibrations-intake tuning in the 8C Competizione and revised cooling in the 8C Spider-and from 2020 the facelifted 8C LCI adopted updated emissions controls, creating partial interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the rear-left cylinder block near the transmission bellhousing (Alfa Romeo TIS B8000-201). The 8th VIN digit indicates engine family ('V' for V8 petrol). Pre-2020 models have silver valve covers; post-2020 units use black. Critical differentiation: exhaust manifold design changed in 2020 to improve thermal resistance; pre-2020 parts are not compatible with later ECU calibrations. Service parts require production date verification—manifolds for engines before 01/2020 are incompatible with updated cooling flow (Alfa Romeo SIB 12/2020).
The B8.000's primary reliability risk is exhaust manifold cracking, with elevated incidence in vehicles used under high-load conditions. Internal FCA quality reports from 2021 noted increased thermal fatigue in pre-2020 builds, while UK DVSA records show elevated lambda sensor faults in city-driven 8C models. Extended oil intervals and low-RON fuel increase valve train and sensor stress, making thermal management and fuel quality adherence critical.
Analysis derived from Alfa Romeo technical bulletins (2018-2023) and UK DVSA failure statistics (2019-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ALFA-ROMEO 940B8000.
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Regulation (EC) No 715/2007
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