Read this before you swap...

Yes i have seen this be4. A lot of 4.7 have this problem, The 4.7 and the 5.7 come from the same company.So i asked a local machine shop. He told me that they take a hole punch and a hammer and go around the outside of the seat. He tells me that it helps make psi around the seat. Don't know if it really works but he hasn't had one back yet...