Ford has announced the final engine specifications for the 2016 Shelby GT350 Mustang and 2016 Shelby GT350R Mustang. The all-new 5.2-liter flat-plane crankshaft V8 engine on both the high-performance models makes 526 hp at 7,500 rpm and 429 lb.-ft. (713 Nm) of torque at 4,750 rpm.
The company’s most powerful naturally aspirated production-spec engine is less of turbocharging and supercharing but still manages to churn out 102 hp/l. The flat-plane crankshaft design of the engine was optimized for the Shelby variants using computer-aided engineering and digital performance simulations. The crankshaft is gun drilled as a weight-saving measure and also to improve bay-to-bay cylinder breathing.
The engine produces 90% of peak torque at from around 3,450 rpm through 7,000 rpm. It features a racetrack-friendly spread of nearly 3,000 rpm between its torque and horsepower peaks. A Tremec TR-3160 6-speed manual transmission sends power to the rear wheels through a standard 3.73 axle ratio Torsen limited-slip differential. This is the only transmission that can be equipped on both Shelby variants. It is specifically engineered for less mass and high-rpm driving in the new Shelby Mustangs, and features a lightweight, die-cast aluminum case and clutch housing for enhanced powertrain stiffness.
More details about the 2016 Shelby GT350 Mustang and 2016 Shelby GT350R Mustang can be found here.