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Yes, there is a difference between the Ford 351 Cleveland and the 351 Modified (often called the 351M). The Cleveland was produced from 1970 to 1974 and is known for its high-performance capabilities, featuring large ports and a high compression ratio. In contrast, the 351M, produced from 1975 to 1982, was designed for lower emissions and fuel efficiency, featuring a different block and a more moderate compression ratio, which resulted in less horsepower. While both engines share similar displacement, their design and intended performance characteristics vary significantly.

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1mo ago

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