Preheat oven to 325° F (165° C). Grease and flour two 8x4 inch loaf pans.
In a large bowl, beat eggs until light and frothy. Mix in oil and sugar. Stir in zucchini and vanilla. Combine flour, cinnamon, soda, baking powder, salt and nuts; stir into the egg mixture. Divide batter into prepared pans.