The Ford UHFC is a 2,997 cc, inline‑six turbocharged petrol engine produced between 2021 and 2025. It features a DOHC 24‑valve layout, direct fuel injection, and a twin‑scroll turbocharger, delivering 272 kW (370 PS) and 500 Nm of torque. This performance flagship of the EcoBoost family uses an aluminum block and head with integrated exhaust manifold and variable valve timing for high-rev responsiveness and thermal efficiency.
Fitted exclusively to the Ford Mustang Mach 1 (S550 facelift), the UHFC was engineered for track-capable performance and refined grand touring. Emissions compliance is achieved through a gasoline particulate filter (GPF), cooled exhaust gas recirculation (EGR), and a close‑coupled three‑way catalytic converter, meeting Euro 6d standards across its production run.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) drive lobe on the camshaft, leading to fuel pressure instability and misfire under load. This issue is referenced in Ford Service Bulletin SSM 52103 (05/2022), which attributes the failure to material fatigue under sustained high-RPM operation. From early 2023, Ford implemented a revised camshaft with nitrided surface treatment on the HPFP lobe.
All UHFC engines meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/8921).
The Ford UHFC is a 2,997 cc inline‑six turbocharged petrol engine engineered for high-performance applications (2021–2025). It combines direct injection with a twin‑scroll turbocharger and dual variable valve timing to deliver linear power delivery and high specific output. Designed to meet Euro 6d standards, it integrates emissions controls while maintaining sporty driving dynamics.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,997 cc | |
| Fuel type | Petrol (RON 98 recommended; RON 95 minimum) | |
| Configuration | Inline‑6, DOHC, 24‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 86.0 mm × 85.8 mm | |
| Power output | 272 kW (370 PS) @ 6,250 rpm | |
| Torque | 500 Nm @ 2,500–5,000 rpm | |
| Fuel system | Bosch HDP7 high-pressure direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.2:1 | |
| Cooling system | Water‑cooled with dual electric auxiliary pumps | |
| Turbocharger | Twin‑scroll turbo (BorgWarner BMTS) | |
| Timing system | Chain-driven DOHC with variable intake/exhaust phasing | |
| Oil type | Ford WSS-M2C948-B1 (SAE 0W‑20 full synthetic) | |
| Dry weight | 165 kg |
The inline‑six architecture provides inherent balance and smooth power delivery ideal for high-RPM performance, but demands strict adherence to 0W‑20 Ford‑approved oil to protect the HPFP drive lobe and timing chain. Sustained track use accelerates camshaft lobe wear if oil is degraded or incorrect. The GPF requires periodic highway runs (>2,500 rpm for 15+ minutes) to prevent clogging. Revised camshafts (from 02/2023 onward, P/N CV8Z‑6250‑DA) should be used for replacements per SSM 52103. Pre-2023 engines benefit from proactive HPFP pressure monitoring at 50,000 km.
Oil Specs: Requires Ford WSS-M2C948-B1 (0W-20) specification (Ford TIS F300UHFC-06). Not interchangeable with ACEA C2/C3 oils.
Emissions: Euro 6d certification confirmed for all model years (VCA Type Approval #VCA/EMS/8921).
Power Ratings: Peak output requires RON 98 fuel for optimal knock control and turbo response (Ford PT-UHFC/21).
Ford Technical Information System (TIS): Docs F300UHFC-01 to F300UHFC-06
Ford Service Shop Manual (SSM) 52103
VCA Type Approval Database (VCA/EMS/8921)
EU Regulation (EU) 2017/1151
The Ford UHFC was used exclusively in Ford's high-performance Mustang Mach 1 (S550 facelift) with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts, upgraded oil cooler, and unique intake plenum—ensuring optimal track durability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the left side of the cylinder block near the oil filter adapter (Ford TIS Fig. F300-02). The full code reads 'UHFC' followed by a serial number. The 7th and 8th VIN digits are 'MU'. All UHFC engines feature a black aluminum valve cover with 'EcoBoost' script and twin-scroll turbo with integrated exhaust manifold. Do not confuse with the Coyote V8 or the smaller 2.3L L4 engines used in other Mustang trims.
The UHFC's primary reliability risk is high-pressure fuel pump (HPFP) drive lobe wear on the camshaft, with elevated incidence in track or aggressive driving conditions. Ford internal durability data from 2023 indicated a 6% failure rate before 60,000 km in pre-02/2023 builds under high-RPM duty cycles, while VCA service records show GPF-related derate events account for 11% of emissions-related warranty claims. Extended high-load operation without oil monitoring accelerates camshaft degradation, making oil quality and driving pattern critical.
Analysis derived from Ford technical bulletins (2021–2025) and UK VCA failure statistics (2022–2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD UHFC.
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