FOR SALE Mercury 7.4 L 454 V8 Crusader Marine Inboard Boat Engine NO SALT 316 HRS. Built on the iconic General Motors (GM) block. Condition very excellent.

The 7.4 L (454 CID) V8 Crusader and MerCruiser marine inboard engine is a legendary General Motors big-block renowned for producing massive low-end torque. Designed specifically to push heavy hulls, it typically generates 300 to 350 horsepower and over 400 lb-ft of torque

Key Specifications
Specification Details

• Engine Type : 90-degree V8, Overhead Valve (OHV), 16-valve
• Displacement : 7.4 Liters (454 cubic inches)
• Horsepower : 300 HP to 350 HP (depending on the year and fuel system)
• Torque : ~400 to 435 lb-ft
• Bore x Stroke : 4.250″ × 4.000″
• Compression Ratio : 8.6:1 to 8.75:1
• Fuel System : 4-barrel carburetor or Multi-Point Fuel Injection (MPI)
• Cooling System : Closed-loop freshwater cooling with raw water heat exchanger
• Oil Capacity : ~6 to 8 quarts (SAE 15W-40).