Siamesed cylinders are engine cylinders arranged in such a way that they have no channels between them to allow water or other coolant to circulate.
Cylinders are generally arranged in this manner when the engine block is of limited size or when stability of the cylinder bores is of concern, such as in racing engines. The advantage is that the engine block will be reduced in size, or the bore can be increased in size. The disadvantage is a higher temperature between two cylinders, requiring a stronger engine block to avoid distortion of the metal, and better gasket sealing between the two bores.
Examples
Engines with siamesed cylinders:
- Chevrolet Stovebolt engine
- Chevrolet small-block engine (first- and second-generation)#4.125 in bore family (1970–1980)
- Oldsmobile 403 small-block V8 (1977-1979)
- Ford Godzilla engine
- Ford Racing versions of the Ford (Windsor) small block engine
- Honda B engine
- Mazda E engine
- Honda K engine
- Toyota A engine (including both performance engines like the 4age and small economy engines like the 3A, 4A)
References
- ^ Wright, Gus (2021). Fundamentals of Medium/Heavy Duty Diesel Engines. Jones & Bartlett Learning. pp. 1612–1613, 1644, 1840. ISBN 978-1-284-15091-9. Retrieved 2024-11-12 – via Google Books.
- Principles of automotive vehicles. Department of the Army. 1985. p. 9-2. Retrieved 2024-11-12 – via Google Books.
- Baechtel, John (2012). Competition Engine Building: Advanced Engine Design and Assembly Techniques. CarTech Inc. p. 31. ISBN 9781934709627. Retrieved 2014-10-05 – via Google Books.
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