The engine should be a treat. Porsche has developed a specific naturally aspirated 4 liter high-revving flat-six which puts out 420 hp at 7600 rpm, with 420 Nm of peak torque being maintained between 5000 and 6800 rpm, and the limiter kicking in at 8000 rpm. This engine is a derivative of the 992 Carrera S unit, but without the twin turbochargers.

Bore (102 mm) and stroke (81.5 mm) are identical to the engine which powers the GT3 and GT3 RS. The new engine integrates the same piezoelectric injectors used on the 992 Carrera S and particle filters to comply with applicable regulations.

Markus Atz, project leader for the 718 GT4 and Fabian Zink, powertrain lead for the 718 are very proud of their achievements. They explain that complying with Euro 6d standards was particularly challenging.

Porsche thinks it is essential to preserve naturally aspirated engines for this model line, a statement which bodes well for the upcoming 992 GT3: Porsche has the technology to continue to market high revving engines for its GT cars. Cost constraints however made it impossible to use a derivative of the 991 GT3 4 liter block. Beside economic aspects, the GT3 unit has not been designed for a mid engine configuration.