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).

Those really good Ford guys should know, if they're really good Ford guys, there's no such thing as big or small block in Ford.

FE's, Y-blocks, FT's, 335's, 385's, MEL's, Windsor's...

All engine families, not inhibited by cubic inch size.

For example, the FE ran from 332 all the way up to 428 with a 427 in between.

Edit: let me correct myself. They "did" have big and small blocks. In inline six cylinders. The 200 was a small block, the 240 and 300's were big blocks.