The SB4 has the color green but that does not mean that it is eco-friendly. It just means that the engine is green in color. What it does not lack is power. The vehicle has 750-HP and 470 pounds-feet of torque. It is also based on the LS7 engine.
Photo from:http://cdn.speednik.com/wp-content/blogs.dir/1/files/2016/11/2016-11-02_05-18-16.jpg (Note, this is not the SB4. It is the closest look we could find to the actual engine.)
1. Mercury racing has released a new engine called the SB4.
2. It is based around the LS7 engine.
3. It has 750-HP and 470 pounds-feet of torque.
Quote: "By ripping out everything down to the block and rebuilding it as a dual overhead cam wonder, Mercury Racing managed to pull a stunning out of the 7.0-liter engine now known as the SB4, while lifting the redline to a stunning 8,000 rpm." (Courtney, 2017)