Will a 351W or C intake work on a 302?
I'm afraid it's a no go. The Cleveland is a big block and as such won't be close. The 351 Windsor, while a small block, like the 302 uses a wider intake manifold. Heads can be interchanged although in most instances. The only difference in them is the size of the bolts used to mount them to the block. The 302 uses smaller bolts than the 351. How do I know....because my 351 is running with 302 Mustang heads. They flow better, but I had to enlarge the bolt holes. On the bright side for you, finding a 4 barrel intake for a 302 should be an easy thing to do given the proliferation of the venerable 5.0. Have fun with it.