For decades we've been the leader in developing high performance marine engines and now we are here to take on the automotive aftermarket. It doesn't matter if it's in a boat or a car, our passion for speed and horsepower drives us to deliver the best products possible. We don’t just aim to outperform our competitors – we aim to outperform ourselves.
Mercury Racing designed, Edelbrock® cast DOHC , four-valve cylinder heads.
Computational Fluid Dynamics (CFD) and GT-PowerTM engine performance simulations were used to develop an optimized intake manifold featuring dual throttle bodies for maximum power and efficiency.
Anti-backlash ground, high spec camshaft timing gears for enhanced engine durability and minimized engine Noise, Vibration and Harshness (NVH).
Double row, roller chain primary drive, with Mercury Racing designed hydraulic tensioner for enhanced durability
Pendulum absorber camshaft pulleys for enhanced belt life.
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 a LS cylinder block packed with customized Mercury Racing hardware.
The QC4 is the quintessential crate engine and cannot be matched in terms of performance, run quality, durability and reliability.
At Mercury Racing, we use state-of-the-art testing facilities for design and development, utilizing 3D simulations and analyses on airflow, cooling, fuel and lubrication systems. Intense finite element analysis (FEA) studies are conducted on the head, block and rotating components to ensure an efficient and reliable powertrain. We have exceptional people on our side with the passion to deliver the best.
Ready to hit the road with SB4? Get connected with our distributor, Roadster Shop, for pricing information.