Beat eggs and sugar. Add oil and beat until fluffy. Add salt, baking powder, baking soda and vanilla. Beat well. Add cocoa. Beat in until blended. Add flour, 1 cup at a time (use wooden spoon). Mix well. Add grated zucchini, pineapple and chocolate chips. Mix in well by wooden spoon.
Pour into 2 greased regular size loaf pans. Bake at 350 degrees - approximately 50-60 minutes until toothpick inserted in center comes out clean. Yield: 2 loaves. Let cool in pans 10-15 minutes - turn onto rack. When cool - can be freezer wrapped and frozen. Just like brownies! But better for you! Delicious!