The Ferrari 156 F2 is a 2,393 cc, inline — four, naturally aspirated racing engine developed for Formula Two competition between 1957 and 1960. It features dual overhead camshafts (DOHC), four valves per cylinder, and direct fuel feed via mechanical injection, producing approximately 190 hp at 8,200 rpm. Its high — revving design enabled competitive power output while adhering to FIA's 2.5 — litre engine regulations for the era.
Fitted exclusively to the Ferrari 156 F2 si…
Production years 1957–1960 comply with FIA Formula Two technical regulations (Appendix C) for engine displacement and vehicle safety. No emissions standards apply (FIA Regulation Archive Doc. F2/1957/C).
The Ferrari 156 F2 is a 2,393 cc inline-four, naturally aspirated racing engine designed for Formula Two competition (1957–1960). It combines dual overhead camshafts with four-valve cylinder heads and mechanical fuel injection to deliver high-revving performance. Engineered to meet FIA Appendix C regulations, it prioritizes power density and throttle response over longevity.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,393 cc | |
Fuel type | Petrol (Leaded, 130 Octane Minimum) | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 86.0 mm × 103.0 mm | |
Power output | 190 hp @ 8,200 rpm | |
Torque | 205 Nm @ 6,500 rpm | |
Fuel system | Mechanical fuel injection (Lucas or Weber units) | |
Emissions standard | Not applicable | |
Compression ratio | 11.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | None | |
Timing system | Gear-driven DOHC | |
Oil type | Mineral racing oil, SAE 20W-50 | |
Dry weight | 138 kg |
The Ferrari 156 F2 was used exclusively in Ferrari's 156 F2 open-wheel racing chassis with mid-engine mounting and no licensed production. This engine received race-specific adaptations-tuned exhaust manifolds and fuel mapping-and from 1959, the updated valve train with nitrided camshafts, creating rebuild and parts interchange limits. All adaptations are documented in OEM technical bulletins.
The 156 F2's primary reliability risk is camshaft and bearing wear under sustained high-RPM operation, with elevated incidence in endurance events. Internal Ferrari race logs from 1958–1959 noted over half of pre-1959 engines required valve train servicing before 15 hours of track time, while FIA scrutineering records show frequent oil seal failures in hot-weather races. Extended high-load cycles and inadequate post-race cooldown increase thermal stress, making oil quality and operational discipline critical.
Analysis derived from Ferrari technical bulletins (1957–1960) and FIA race scrutineering records (1957–1960). 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 156 F2 is a high-performance racing engine designed for competition, not long-term daily use. Pre-1959 units are prone to camshaft and bearing wear under sustained high RPM. Post-1959 updates with nitrided camshafts improved durability. Regular rebuilds every 10–15 hours of track time, proper cooldown, and correct oil usage are essential for reliability.
The most common issues are camshaft/tappet wear, main bearing failure, head gasket blowouts, and fuel injection synchronization problems. These are documented in Ferrari service logs and post-race inspections. Wear is accelerated by high-RPM operation and inadequate maintenance intervals.
The 156 F2 engine was used exclusively in the Ferrari 156 F2 single-seater racing car from 1957 to 1960. It was not used in any road-going Ferrari models. The engine was developed specifically for FIA Formula Two regulations and powered Ferrari's works and customer entries in European Grand Prix events.
Power tuning is limited due to the engine's already high state of tune. Modifications are restricted to period-correct enhancements: optimized carburetion/injection, porting, and cam profiling. Output can be increased slightly (up to 210 hp) with high-lift cams and exhaust tuning, but this reduces reliability. All modifications must comply with historic racing regulations.
Fuel consumption is approximately 35–40 L/100km under race conditions, depending on circuit and driving style. With a 120-liter fuel cell, endurance events required mid-race refueling. The engine runs on 130-octane leaded petrol, and injection settings are calibrated for high-flow operation, not efficiency.
Yes. The 156 F2 is an interference engine due to its high compression and valve timing design. If the gear-driven timing system fails or slips, piston-to-valve contact is likely, resulting in severe internal damage. Proper gear alignment and regular inspection are critical to prevent catastrophic failure.
The engine requires mineral-based SAE 20W-50 racing oil, as specified in the 1958 workshop manual. Synthetic oils are not recommended for period-correct operation. Oil must be changed after every race event, and the system should be flushed to remove combustion byproducts and metal particles.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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