Opel OHV engine

Opel OHV engine
Overview
Manufacturer	General Motors
Also called	Kadett engine
Production	1962-1993
Combustion chamber
Configuration	Straight-4
Displacement	993 cc (60.6 cu in) 1,078 cc (65.8 cu in) 1,196 cc (73.0 cu in)
Cylinder bore	72.0 mm (2.83 in) 75.0 mm (2.95 in) 79.0 mm (3.11 in)
Piston stroke	61.0 mm (2.40 in)
Valvetrain	OHV
Combustion
Fuel type	Gasoline
Oil system	Wet sump
Cooling system	Water-cooled
Chronology
Successor	Family 1

The Opel OHV family (also known as the Kadett engine after its most famous application) is a pushrod straight-4 engine. It was developed by Opel of Germany and released in 1962. Versions were in use through 1993.

1.0

The first version of the engine was the 1.0 and placed in the Kadett A which was produced from 1962 to 1965. Displacement was 993 cc (61 cu in) with a 72.0 mm (2.83 in) bore and a 61.0 mm (2.40 in) stroke. The Kadett A had two different versions of the engine, namely 10N (normal compression) with 29 kW (39 hp) and 10S (super compression) with 35 kW (47 hp).

This engine was retired in 1965 in favor of the 1.1 but revived in 1973 as a basic engine of the Kadett C. It was revived a second time in 1982 for use in the Corsa A where it produced 33 kW (44 hp). It was also used in export market models of the Opel Kadett D.

Applications:

• 1962-1965 Opel Kadett A
• 1973-1979 Opel Kadett C
• 1979-August 1981 Opel Kadett D
• 1982-1993 Opel Corsa A / Vauxhall Nova

1.1

In 1965, the engine was enlarged for use in the all new Kadett B. Displacement was 1,078 cc (66 cu in) with a bore enlarged to 75.0 mm (2.95 in) stroke remained at 61.0 mm (2.40 in). The 11N (normal compression) produced 33 kW (44 hp) and 37 kW (50 hp) after 1971. The 11S produced 40 kW (54 hp); in 1966 a special power version was introduced, the 11SR with .

Applications:

• 1965-1973 Opel Kadett B
• 1967-1970 Opel Olympia A
• 1968-1970 Opel GT 1100

1.2

In 1971, a second enlargement made the 1.2 with a displacement of 1,196 cc (73.0 cu in). Bore was enlarged to 79.0 mm (3.11 in) and stroke was still at 61.0 mm (2.40 in). Performance of the 12N varied from 37 – −40 kW (50 – −54 hp); the 12S consistently had 44 kW (59 hp).

Applications:

• 1971-1973 Opel Kadett B
• 1973-1979 Opel Kadett C
• 1979-1984 Opel Kadett D / Chevrolet Kadett (ZA) / Vauxhall Astra Mk 1
• 1984-1988 Opel Kadett E / Vauxhall Astra Mk 2
• March 1972-1975 Opel Ascona A
• 1975-1980 Opel Ascona B / Vauxhall Cavalier Mk 1
• 1972-1975 Opel Manta A
• 1975-1979 Opel Manta B
• 1982-1993 Opel Corsa A / Vauxhall Nova (with catalyst and 45 PS)

References

• "Das große Kadett-Buch", Edition Heel, Königswinter, Germany
• Oswald, "Deutsche Pkw 1945-1990, Band 3: Ford, Opel, VW" Motorbuch-Verlag, Germany
• Oswald, Werner. Deutsche Autos 1945-1975. ISBN 3-87943-391-7.