You may have one bolt hole in the front cover which won't line up. I did. If that is the case, you can drill a hole, tap it and put in a shorter bolt than the others. I don't remember the length, but it worked well for me. Don't drill into the water chamber behind it! Just get enough threads to get the bolt in and hold it with some loctite. You really don't even need the bolt for strength, it is more for plugging that hole so it doesn't leak. Also, different oil pickup, different coolant tube under the manifold in the valley. No biggies though.