Opel OHV engine

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 mm × 61 mm (2.83 in × 2.40 in) bore and stroke. The Kadett A had two different versions of the engine, namely 10N (normal compression) with 29 kW (40 PS) and 10S (super compression) with 35 kW (48 PS).

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 (45 PS). 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

Right-hand side view of a 1967 11S engine (US-spec)

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 mm (3.0 in) stroke remained at 61 mm (2.4 in). The 11N (normal compression) produced 33 kW (45 PS) and 37 kW (50 PS) after 1971. The 11S produced 40 kW (55 PS); in 1966 a special power version was introduced, the 11SR with 44 kW (60 PS).

Applications:

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

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 mm (3.1 in) and stroke was still at 61 mm (2.4 in). Performance of the 12N varied from 37–40 kW (50–55 PS); the 12S consistently had 44 kW (60 PS).

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 33 kW (45 PS))

• "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.