On November 1, Mercury Racing introduced the SB4 7.0 (small block four valve) automotive aftermarket crate at the opening of the Specialty Equipment Market Association (SEMA) show in Las Vegas. SEMA consists of a diverse group of manufacturers, builders, distributors, retailers and publishing companies.
Designed, developed and manufactured in-house, the naturally aspirated 7.0-liter engine features Mercury Racing’s exclusive aluminum four-valve cylinder heads and dual overhead camshaft valve train integrated with a LS cylinder block packed with Mercury Racing spec hardware. The valve train, which the manufacturer says greatly enhances engine durability over a standard two-valve design, helps the engine produce a staggering 775 hp at 7,500 rpm on pump fuel.
Benefits of the double-overhead cam four-valve design include improved intake and exhaust flow, efficient four-valve combustion and low-mass, high-stiffness design that reduce stresses and allow high-rpm operation.
Mercury Racing is unique in the high-performance power-train business because they design and develop fully integrated systems. They develop their own electrical and engine-management systems, and their proprietary power-train control module, featuring internally written software, provides the opportunity for customization and application-specific needs.
The Mercury Racing SB4 7.0 was developed utilizing 3-D simulations and analyses on airflow, cooling, fuel and lubrication systems. Intense finite-element analysis studies were conducted on the head, block and rotating components to ensure an efficient and reliable power train.
The SB4 7.0 is available as turn-key ready to run with Mercury Racing’s proprietary engine-control module and electrical harness. They come unpainted, so a vehicle builder can match the color. Exhaust isn’t included.
SpeedKore Performance Group of Grafton, Wisconsin, will be the exclusive distributor of the SB4 7.0. SpeedKore customizes and builds classic high-performance cars featuring an array of advanced composites, including carbon fiber. SpeedKore’s knowledge of the custom-car industry and the unique challenges that come with the fitment of engines and power trains in one-of-a-kind custom builds earned them the exclusive SB4 distribution.
SpeedKore is a distributor for Mercury Racing QC4 crate engines as well. Designed, developed and manufactured in-house, the QC4 is unique in the aftermarket high-performance power-train business. The all-aluminum, 9-liter 90-degree DOHC V8 twin-turbo engine optimizes power and torque throughout the rpm range while delivering an incredible 1,650 hp.
Mercury Racing and SpeedKore executives first met at the 2013 SEMA, where Mercury Racing revealed the high-powered QC4 engine.