We built our first 4.0 911 engine in 2008 (17 years ago). 76.4 X 105 mm
A true tractor motor. GT3 crank, 993 case, GT3 titanium rods and an enhance version a 3,2 Carrera intake w/Motec engine management . It used Venti-port heads w/Del West titanium valves to improve low RPM port velocity. Max hp was generated at 6500 rpm.
It was installed in a sand rail with a Mindiola transmission which proved to be the weak link in the power train. The torque generated by the 4.0 maxed the limits of the incredibly stout transmission.
