This manual covers the Mercury Mercruiser 454 CID engine family, specifically for models produced between 1993 and 1997. These V8 engines, with a displacement of 7.4 liters (454 cubic inches), are known for their robust construction and reliable performance, often found in marine applications. Featuring electronic ignition and a carbureted fuel delivery system, these engines were engineered to provide substantial power and torque, estimated between 300-350 HP and 400-450 lb-ft respectively, suitable for a variety of demanding uses. This comprehensive service repair manual provides detailed information essential for the maintenance and repair of your Mercury Mercruiser engine. It covers critical procedures, technical specifications, troubleshooting guides, and safety recommendations. Whether you are an owner performing routine upkeep or a technician addressing complex issues, this manual serves as an indispensable resource for ensuring the longevity and optimal performance of your 454 CID engine.