The website below believes that the CE prefix is indeed a replacement or warranty engine.

http://www.chevy-camaro.com/chevy-camaro-engine-suffix-code-help.asp

If you can find your block casting number this list of numbers should help to identify your engine displacement as Wrenchbender suggested above.

http://clubs.hemmings.com/clubsites/chevytalk/GMhistory/6-cylindercast.html

"Nothing astonishes men so much as common sense and plain dealing." - Ralph Waldo Emerson