351w

you know what's interesting? I had a Cleveland, and some really good Ford guys couldn't decide if it was a big block or small block.... LOL. I've had some 302's, 289's, a Windsor, a Cleveland in small block Ford. My personal favorite was the 289 (even though the Cleveland had more power).

That debate rages on to this day. The Cleveland family (the 335 series) consists of the 351C, 351M and 400. All of which are small blocks. You cannot talk to people who believe they are big blocks. They are not, yet there are those who will go to their graves believing otherwise.