Engine cleaning help

[somebody]

OK I have a lt1 and I dont know how to clean it with out hurting the opti spark. Iam mainly interested though in cleaning the hood and the fender wells. Here are some pictures so you know what Iam talking about.

http://i59.photobucket.com/albums/g289/lt1_man/DSCN0829.jpg

http://i59.photobucket.com/albums/g289/lt1_man/DSCN0830.jpg

http://i59.photobucket.com/albums/g289/lt1_man/DSCN0833.jpg

http://i59.photobucket.com/albums/g289/lt1_man/DSCN0834.jpg

-Thanks Brandon

[Ed Fisher]

Did you try a degreaser like Simple Green or Meg` s ? Aftr that you can go for a cleaner wax and give it some shine ???