This manual covers marine gasoline internal combustion engines. These engines, available in 5.0 Liter and 5.7 Liter displacements, are designed for marine applications and represent a commitment to robust engineering and reliability. While specific production years are not detailed, this service and repair manual is applicable across multiple model years, indicated by various suffixes. The purpose of this comprehensive English-language Service & Repair Manual is to provide detailed guidance for the maintenance and repair of the specified engines. It covers essential areas including general information, engine mechanics, cooling systems, steering systems, and throttle and shift control systems. This manual is an indispensable resource for owners, mechanics, and technicians seeking to understand, maintain, and effectively troubleshoot these marine powerplants, ensuring optimal performance and longevity.