A straight-seven engine or inline-seven engine is a straight engine with seven cylinders. It is more common in marine applications because these engines are usually based on a modular design, with individual heads per cylinder.
Straight-seven engines produced for marine usage include:
The AGCO Sisu is a straight-seven diesel engine that was released in 2008. Intended for farming machinery, the engine shares various components with the company's straight-six engine.
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