Opel OHV engine

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 with a 72.0 mm bore and a 61.0 mm stroke. The Kadett A had two different versions of the engine, namely 1,0 N (normal compression) with 40 hp ( 29 kW) and 1,0 S (super compression) with 48 hp (35 kW).

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 performed 45 hp ( 33 kW).

Applications:

• 1962-1965 Opel Kadett A
• 1973-1979 Opel Kadett C
• 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 1078 cc with a bore enlarged to 75.0 mm; stroke remained at 61.0 mm. The 1.1 N (normal compression) performed 45 hp (33 kW) and 50 hp (37 kW) after 1971. The 1.1 S had 55 hp (40 kW); in 1966 a special power version was introduced, the 1.1 SR with 60 hp (44 kW).

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 1196 cc. Bore was enlarged to 79.0 mm and stroke was still at 61.0 mm. Performance of the 1.2 N varied from 52 to 55 hp (38 to 40 kW); the 1.2 S constantly had 60 hp (44 kW).

Applications:

• 1971-1973 Opel Kadett B
• 1973-1979 Opel Kadett C / Vauxhall Chevette
• 1979-1984 Opel Kadett D / Vauxhall Astra Mk 1
• 1984-1988 Opel Kadett E / Vauxhall Astra Mk 2
• 1970-1975 Opel Ascona A
• 1975-1979 Opel Ascona B / Vauxhall Cavalier Mk 1
• 1970-1975 Opel Manta A
• 1975-1979 Opel Manta B
• 1982-1993 Opel Corsa A / Vauxhall Nova (with catalyst 45 hp)

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.