- Stock #414177 - This Classic 77 Apollo is well cared for it's age. Recent upgrades cosmetic , all new upholstery / New full canvas 1977 Apollo 31 Maxim V Sportcruiser. The twin engines are Mercruiser 5.7L with 250 HP each and Bravo One outdrives. Current owner is only the 2nd owner! BOTH MOTORS ARE NEW BLOCKS! STARBOARD REPLACED IN 2028. PORT ENGINE REPLACED IN 2022. The twin engines are 5.7 Mercruisers repowered The starboard 5.7 replaced new in 2018 /5.7 port engine replaced 2022. GIMBLE HOUSING REPLACED 2020 BRAVO ONE SHAFTS REPLACED 2022 Gimble Housings replaced new 2020/Bravo... read more