Cleaners That Work

[72Rider]

Looking for some good advice on cleaners and paint. I just pulled the motor on my '72 K20 and have quite a coating of grease and oil in the engine compartment. I purchased some Engine Brite brand degreaser andit barely made a dent.

Nows the best tI me to clean with all the tight spots easily accessible. What's your guys favorite cleaners that work? Also, I have some areas that could use a touch of black paint. Any suggestions for paint that will stick for years to come... even if the surface isn't prepped perfectly?

Last one. I have a couple areasmall with light to mild surface rust. Is there a paint or something out there that will help stop or slow down the progress of the rust?

Thanks
Rider