# Fiat 124 series engine > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Fiat_124_series_engine > Markdown URL: https://mediated.wiki/source/Fiat_124_series_engine.md > Source: https://en.wikipedia.org/wiki/Fiat_124_series_engine > Source revision: 1340081952 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Reciprocating internal combustion engine Fiat 124/OHV engine 131 A1.000 1.6 L (1,585 cc) OHV engine Overview Manufacturer Fiat / Fiat Automóveis[broken anchor] (Brazil) Production 1966–1999 Layout Configuration Inline-4 Displacement 1.2–2.0 L (1,197–1,995 cc) Cylinder bore 73 mm (2.87 in) 76 mm (2.99 in) 78 mm (3.07 in) 80 mm (3.15 in) 84 mm (3.31 in) Piston stroke 71.5 mm (2.81 in) 90 mm (3.54 in) Cylinder block material Cast iron Cylinder head material Aluminium Valvetrain OHV 2 valves x cyl. SOHC 2 valve x cyl. Combustion Turbocharger In some versions Fuel system Carburetor, Indirect injection Fuel type Gasoline, Diesel Cooling system Water-cooled Chronology Successor Fiat Twin-cam Designed by [Aurelio Lampredi](/source/Aurelio_Lampredi), the **Fiat 124** engine first appeared in the all-new [Fiat 124](/source/Fiat_124) in April 1966. The in-line four-cylinder engine comprised an iron [block](/source/Cylinder_block) with an aluminium [cylinder-head](/source/Cylinder_head) with [pushrod](/source/Pushrod) actuated valves. In 1974, with the introduction of the [Fiat 131](/source/Fiat_131), a toothed belt replaced the chain to drive the camshaft.[1] While originally of an [overhead valve](/source/Overhead_valve) design, an [overhead cam](/source/Overhead_cam) version was added to the facelifted 131 in 1981. The capacity was initially 1.2 L (1,197 cc) (in the Fiat 124), but eventually ranged between 1.2 and 1.9 L (1,197 and 1,929 cc). 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](/source/Fiat_Twin_Cam_engine), which continued in production until 2000. The 1.9 L (1,929 cc) direct-injected diesel version was the first [direct-injection](/source/Fuel_injection#Direct_injection_systems) diesel to appear in a production passenger car, the [Fiat Croma](/source/Fiat_Croma#First_generation) 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 73 mm × 71.5 mm (2.87 in × 2.81 in) to produce a displacement of 1.2 L (1,197 cc). A larger 1.4 L (1,438 cc) version arrived in October 1968, in the 124 Special. This has an 80 mm (3.15 in) bore.[2] The bore was increased to 76 mm (2.99 in) to give a displacement of 1.3 L (1,297 cc) for the 131, which was also available in a 1.6-litre version with a 84 mm (3.31 in) bore. A variety of other bores and strokes were available. Several of the Brazilian [Fiasa engines](/source/Fiat_Fiasa_engine) 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 140 km/h (87 mph) on the [autostrada](/source/Autostrade_of_Italy), rather than the 130 km/h (81 mph) 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](/source/Reverse-flow_cylinder_head) 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](/source/Fiat_Twin_Cam_engine), which used the 124-series block with some modifications to use a [DOHC](/source/DOHC) valvetrain with a crossflow head. The Italian single overhead cam version arrived in 1981 and formed the basis for the three diesel versions. The 1.4 L (1,367 cc) diesel was available in [turbocharged](/source/Turbocharger) guise in the [Uno Turbo D](/source/Fiat_Uno), 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](/source/Fiat_Campagnola#1107); this has the 84 mm (3.31 in) bore of the 1.6 but combined with a 90 mm (3.54 in) stroke.[3] Valid engine bore/stroke combinations Stroke (mm) Bore (mm) 73 76 76.1 78 80 82.6 84 71.5 1197 OHV 1297 OHV 1301 OHV 1367 SOHC, diesel 1438 OHV 1533 1585 OHV, SOHC 79.2 1326 1437 1441 1514 1592 1697 diesel 1756 90 1507 1633 1637 1720 1810 1929 diesel 1995 OHV ## Applications List of vehicles using variations of the Fiat 124-series engine (incomplete). ### Fiat **OHV** - [Fiat 124](/source/Fiat_124): 1966-1974 - [Fiat 131](/source/Fiat_131) Mirafiori: 1974-1981 (longer for the Weekend/Estate) - [Fiat 238](/source/Fiat_238): 1968-1983 (CR 7.7 Normale, CR 9.2 Super) - [Fiat 241](/source/Fiat_241): 1965-1974 - [Fiat 242](/source/Fiat_242): 1974-1987 - [Fiat Campagnola](/source/Fiat_Campagnola): 1974-1987 - [Abarth 1300 Scorpione](/source/Lombardi_Grand_Prix#Scorpione): 1969-1971[4] **SOHC** - [Fiat 131](/source/Fiat_131) Mirafiori: 1981-1984 - [Fiat Croma](/source/Fiat_Croma): 1985-1991 **Diesel engine** - [Fiat Uno](/source/Fiat_Uno): 1986-1995 (Europe) - [Fiat Ritmo](/source/Fiat_Ritmo): 1985-1988 - [Fiat Regata](/source/Fiat_Regata): 1984-1990 - [Fiat Fiorino](/source/Fiat_Fiorino): 1988-1999 - [Fiat Duna](/source/Fiat_Duna): 1987-1991 - [Fiat Ducato](/source/Fiat_Ducato): 1987-1999 - [Fiat Croma](/source/Fiat_Croma): 1988-1997 - [Fiat Tipo](/source/Fiat_Tipo_(Type_160)): 1988-1995 - [Fiat Tempra](/source/Fiat_Tempra): 1990-1997 - [Fiat Bravo/Brava](/source/Fiat_Bravo%2FBrava): 1995-1997 - [Lancia Delta](/source/Lancia_Delta): 1986-1991 - [Lancia Prisma](/source/Lancia_Prisma): 1984-1989 - [Lancia Dedra](/source/Lancia_Dedra): 1989-1999 ### SEAT **OHV** - [SEAT 124](/source/SEAT_124): 1968–1980 - [SEAT 1430](/source/SEAT_1430): 1969–1975 - [SEAT 131](/source/SEAT_131) L / Mirafiori L / Supermirafiori CL: 1975-1984 - [SEAT Sport](/source/SEAT_Sport) 1200/1430: 1975-1979 - [SEAT 128](/source/SEAT_128): 1976–1980 - [SEAT Ritmo](/source/SEAT_Ritmo): 1980–1983 - [SEAT Fura](/source/SEAT_Fura) Crono: 1981-1983 - [SEAT Ronda](/source/SEAT_Ronda): 1982–1984 ## Footnotes 1. **[^](#cite_ref-1)** *All the Fiats*. Rozzano: Editoriale Domus. 1996. p. 562. 1. **[^](#cite_ref-AR71_2-0)** Braunschweig, Robert; et al., eds. (11 March 1971), *Automobil Revue '71* (in German and French), vol. 66, Berne, Switzerland: Hallwag SA, p. 290 1. **[^](#cite_ref-AR82_3-0)** Büschi, Hans-Ulrich, ed. (March 3, 1982). *Automobil Revue '82* (in German and French). Vol. 77. Berne, Switzerland: Hallwag, AG. p. 572. [ISBN](/source/ISBN_(identifier)) [3-444-06062-9](https://en.wikipedia.org/wiki/Special:BookSources/3-444-06062-9). 1. **[^](#cite_ref-AMS70.1_4-0)** Schruf, Werner (1970). ["Scharfe Zwillinge"](http://home.planet.nl/~fredr079/alg/alg001de.html) [Sharp twins]. *Auto, Motor und Sport* (in German) (22): 117. --- Adapted from the Wikipedia article [Fiat 124 series engine](https://en.wikipedia.org/wiki/Fiat_124_series_engine) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Fiat_124_series_engine?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.