Aurelio Lampredi Aurelio Lampredi (16 June 1917 – 1 June 1989) was an Italian automobile and aircraft engine designer. Early career Lampredi was born in Livorno, Tuscany. He studied mechanical engineering at the Institut Technique Supérieur in Fribourg. A cl ...

, the Fiat 124 engine first appeared in the all-new Fiat 124 in April 1966. The in-line four-cylinder engine comprised an iron

block Block or blocked may refer to: Arts, entertainment and media Broadcasting * Block programming, the result of a programming strategy in broadcasting * W242BX, a radio station licensed to Greenville, South Carolina, United States known as ''96.3 ...

with an aluminium cylinder-head with

pushrod A valvetrain is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. The intake valves control the flow of air/fuel mixture (or air alone for direct-injected engines) into the combu ...

actuated valves. In 1974, with the introduction of the

Fiat 131 The Fiat 131 is a mid-size family car manufactured and marketed by Fiat from 1974 to 1984 after its debut at the Turin Motor Show#1974, 1974 Turin Motor Show. Available as a two-door and four-door Saloon (car), saloon and 5-door station wagon, ...

, a toothed belt replaced the chain to drive the camshaft. While originally of an

overhead valve An overhead valve engine, abbreviated (OHV) and sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with flathead (or "sidevalve") engines, where the v ...

design, an

overhead cam An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combusti ...

version was added to the facelifted 131 in 1981. The capacity was initially (in the Fiat 124), but eventually ranged between . There were also three SOHC diesel iterations of 1.4, 1.7, and 1.9 litres. European production of the petrol versions ended with the Fiat 131 in 1984, but later diesel derivatives continued to be built until 1999. It did have a longer life in its twin-cam iteration, which continued in production until 2000. The direct-injected diesel version was the first direct-injection diesel to appear in a production passenger car, the Fiat Croma Turbo D i.d.

Engine specifications

The Fiat 124 series engine was produced in a number of configurations differing in stroke and bore but maintaining a standard bore-spacing. The first model (124 A.000) was near square, using a bore and a stroke of to produce a displacement of . A larger version arrived in October 1968, in the 124 Special. This has an bore. The bore was increased to to give a displacement of for the 131, which was also available in a 1.6-litre version with a bore. A variety of other bores and strokes were available. Several of the Brazilian Fiasa engines share their bore and stroke with the 124 series engines and were sometimes used in the same cars, but the engines are not related. The 1.3 was later bored out by 0.1 mm, to nudge the displacement above 1.3 liters. This allowed Italian motorists to drive a full on the

autostrada The ''autostrade'' (; : ''autostrada'', ) are roads forming the Italian national system of motorways. The total length of the system is about , as of 30 July 2022. There are also 13 motorway spur routes, which extend for . Most of the Itali ...

, rather than the which was allowed for cars under 1.3 litres. The 124-series engine has five main bearings, a cast iron block and a reverse-flow aluminum alloy head. Intake and exhaust are both located on the right-hand side of the engine. There are also overhead camshaft versions of the 124-series engine. The first was the Fiat Twin Cam, which used the 124-series block with some modifications to use a

DOHC An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combus ...

valvetrain with a crossflow head. The Italian single overhead cam version arrived in 1981 and formed the basis for the three diesel versions. The diesel was available in

turbocharged In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake air, forcing more air into the ...

guise in the Uno Turbo D, while the larger 1.9-litre version was also available with direct injection. There was also a two-litre pushrod version (6132 AZ 2000) for the 1974 to 1982 Fiat Nuova Campagnola; this has the bore of the 1.6 but combined with a stroke.

Applications

List of vehicles using variations of the Fiat 124-series engine (incomplete).

Fiat

;OHV * Fiat 124: 1966-1974 *

Mirafiori: 1974-1981 (longer for the Weekend/Estate) * Fiat 238: 1966-1976 (CR 7.7 Normale, CR 9.2 Super) * Abarth 1300 Scorpione: 1969-1971 ;SOHC *

Mirafiori: 1981-1984 * Fiat Croma: 1985-1991 ;Diesel engine *

Fiat Uno The Fiat Uno is a supermini manufactured and marketed by Fiat. Launched in 1983, the Uno was produced over a single generation (with an intermediate facelift, 1989) in three and five-door hatchback body styles until 1995 in Europe — and un ...

: 1986-1995 (Europe) * Fiat Ritmo: 1985-1988 * Fiat Regata: 1984-1990 * Fiat Fiorino: 1988-1999 * Fiat Duna: 1987-1991 *

Fiat Ducato The Fiat Ducato is a light commercial vehicle jointly developed by FCA Italy and PSA Group (currently Stellantis), and mainly manufactured by Sevel, a joint venture between the two companies since 1981. It has also been sold as the Citroën C ...

: 1987-1999 * Fiat Croma: 1988-1997 * Fiat Tipo: 1988-1995 * Fiat Tempra: 1990-1997 * Fiat Bravo/Brava: 1995-1997 *

Lancia Delta The Lancia Delta (stylized Lancia Delta (letter), δ) is a small family car produced by Italian automobile manufacturer Lancia in three generations. The first generation (1979–1994) debuted at the 1979 Frankfurt Motor Show#1979, Frankfurt Motor ...

: 1986-1991 * Lancia Prisma: 1984-1989 * Lancia Dedra: 1989-1999

SEAT

;OHV * SEAT 128: 1976–1980 * SEAT 131 Mirafiori * SEAT Ritmo: 1980–1983 *

SEAT Ronda The SEAT Ronda (codenamed ''022A'') is a small family car produced by the Spanish automaker SEAT from 1982 to 1986, and styled by Rayton Fissore in collaboration with the Technical Centre in Martorell. The Ronda was also briefly sold in the United ...

: 1982–1984

Footnotes

{{Reflist

SOHC An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combus ...

Straight-four engines Gasoline engines by model