The Lancia Fulvia 1.2L V4 – Petrol is a 1,216 cc, narrow-angle V4 naturally aspirated engine produced between 1963 and 1974. It features a single overhead camshaft per cylinder bank with two valves per cylinder, delivering a distinctive character and compact dimensions. The engine’s unique 45-degree V configuration and front-wheel-drive layout were engineered for agile handling and mechanical innovation.
Fitted exclusively to the Lancia Fulvia Berlina and Coupé models, the 1.2L variant was designed for accessible performance and daily usability. It offered a smooth power delivery and high-revving nature, making it well-suited for spirited driving on European roads. Emissions controls were minimal for the period, as the engine predates stringent Euro standards.
One documented engineering refinement was the introduction of a twin-choke Solex carburetor in 1965, as noted in Lancia Service Bulletin L‑65‑02. This update aimed to improve throttle response and peak power output. The change coincided with minor revisions to the cylinder head ports to optimize airflow.
This engine predates standardized EU emissions regulations. Production years 1963–1974 fall outside the scope of Euro 1–6 standards (EU Regulation (EC) No 715/2007).
The Lancia Fulvia 1.2L V4 – Petrol is a 1,216 cc narrow-angle V4 naturally aspirated engine engineered for compact executive models (1963-1974). It combines a dual SOHC valvetrain with a twin-choke carburetor to deliver a high-revving, linear power curve. Designed before modern emissions standards, it prioritizes mechanical innovation and driving dynamics over environmental compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,216 cc | |
| Fuel type | Petrol | |
| Configuration | V4 (45°), SOHC per bank, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 72.0 mm × 75.0 mm | |
| Power output | 58–67 PS (43–49 kW) | |
| Torque | 8.8–9.5 kgm @ 4,000 rpm | |
| Fuel system | Solex 32 PAAI or 32 PAAIT carburetor | |
| Emissions standard | Pre-regulation (No Euro standard) | |
| Compression ratio | 8.8:1 – 9.2:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven SOHC (dual chains) | |
| Oil type | SAE 20W-50 (Mineral) | |
| Dry weight | 138 kg |
The V4 configuration provides a compact, lightweight powerplant ideal for front-wheel-drive agility but requires precise valve timing synchronization between the two cylinder banks. The carburetor demands regular tuning and is sensitive to altitude and fuel quality; use of high-octane petrol is recommended. The dual timing chains should be inspected for wear and tension every 30,000 km. Cooling system integrity is vital due to the engine’s compact design.
Oil Specs: Requires SAE 20W-50 mineral oil for optimal bearing and valve train protection (Lancia Owner's Manual, 1965).
Emissions: Pre-dates Euro standards. No formal emissions certification exists (EU Regulation (EC) No 715/2007).
Power Ratings: Measured under DIN 70020 standards. Output varies by carburetor type and compression ratio (Lancia Factory Data Sheet, 1968).
Lancia Technical Workshop Manual (Sections 02, 03)
Lancia Parts Catalogue (Doc. PC-FUL-63)
Lancia Service Bulletin (L‑65‑02)
EU Regulation (EC) No 715/2007
The Lancia Fulvia 1.2L V4 – Petrol was used across Lancia's Fulvia platform with longitudinal, front-mounted installation. This engine received platform-specific adaptations-different intake manifolds for Coupé vs. Berlina-and from 1965 the introduction of the twin-choke carburetor created minor parts interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine type code stamped on the flat boss adjacent to the distributor on the cylinder head. The full designation "1.2 V4" should be visible. Series 1 engines (pre-1967) typically have a single-barrel Solex 32 PAAI carburetor and a smooth cam cover. Series 2 engines (post-1967) feature the twin-choke Solex 32 PAAIT carburetor and may have a ribbed cam cover. Critical differentiation: Series 2 heads have revised porting and higher compression ratios.
The Fulvia 1.2L V4 – Petrol's primary reliability risk is dual timing chain wear, with elevated incidence in high-mileage or poorly maintained examples. Lancia workshop data from the 1960s indicated timing-related failures were a common cause of major repairs, while valve seat recession is prevalent in engines run on modern low-octane unleaded fuel without modification. Neglecting valve clearances and cooling system maintenance accelerates wear, making adherence to the original schedule critical.
Analysis derived from Lancia technical bulletins (1963-1974) and historical workshop manuals. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LANCIA FULVIA-1-2L-V4.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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