Sea-Doo › Sea-Doo 580 Top End Rebuild Kit (1mm Over, 77mm) Image 1 of 1 Sea-Doo 580 Top End Rebuild Kit (1mm Over, 77mm) $238.56 Complete rebuild solution for heavily worn cylinders requiring 1mm overbore. Restores power and compression. Add To Cart Added! Complete rebuild solution for heavily worn cylinders requiring 1mm overbore. Restores power and compression. You Might Also Like Sea-Doo 900 Top End Rebuild Kit (.75mm Over, 74.75mm) $565.43 Sea-Doo 900 Top End Rebuild Kit (.5mm Over, 74.50mm) $565.43 Sea-Doo 1503/1630 4-Tec Top End Rebuild Kit (99.96mm Standard) $546.83 Sea-Doo 900 Top End Rebuild Kit (1mm Over, 75mm) $565.43 Sea-Doo 580 Top End Rebuild Kit (.25mm Over Platinum) $258.46