Difference between ford 351 and 400 Source Source Source Source Source Source Source Source Source Source Read Also: What is the difference between a ford 4x4 and fx4 What is the difference between ford 4x4 and fx4 Difference between ford big block and small block How to tell the difference between ford 8n and 9n Difference between ford 302 and 351 windsor Difference between ford c4 and c5