Mercury 7.0 SB4 Crate Engine

Designed, developed, and manufactured in-house, the naturally aspirated 7.0-liter SB4 engine features Mercury Racing’s exclusive aluminum four-valve cylinder heads and dual overhead camshaft valve train integrated with an LS cylinder block packed with customized Mercury Racing hardware. With 32-valve DOHC cylinder heads, the SB4 valve train dramatically enhances engine durability over a standard two-valve design, enabling the engine to produce 750 horsepower at 7500 RPM on pump fuel. It has a complete accessory…