351 Cleavland - no. 351 Windsor now thats a little different story. The 351 windsor is basically the same as the 302 - same heads, same motor mounts, same exhaust manifolds, same water pump. But.... the block has a taller deck height and a different intake manifold and push rods to compensate for the taller deck height. So I guess it all depends on what your trying to do. Hope this helps.