The Zytek ZG348 engine is a 3.4-litre, normally-aspirated, V8 racing engine, developed and produced by Zytek for sports car racing. The ZG348's rev-limit was about 10,000 rpm, and produces its power output of 530–540 hp (395–403 kW) @ 9,500 rpm, and peak torque of 440 N⋅m (325 ft⋅lbf) @ 8,500 rpm.