What 351 engine did they put in the 1970 Mustang?

The 1970 Mustang offered a 351 cubic inch (5.8 L) V8 engine in two main variants: the 351 Windsor and the 351 Cleveland. The 351 Windsor produced 240 horsepower, while the 351 Cleveland, introduced later that year, delivered higher performance with around 300 horsepower, depending on the configuration. Both engines were part of Ford's effort to provide a range of powerful options for performance enthusiasts.