When we put the LS3 Corvette motor into the 1990 Porsche (911 is what most people call it, but the specific model designation from Porsche was 964), we obviously knew we were going to get more power.
It turns out that after dyno’ing the car, we went from the stock power level of about 220 horsepower at the wheels to 410hp, doubling the power output.
The G50 5-speed transmission that comes with the car is able to handle the power increase, given how well they were made. However, recently, I did end up rebuilding the tranny with hardened parts given the car’s racing use and the extra wear and tear on the transmission at high RPMs and high heat.
This video was taken some time ago, but gives a good idea of the ride height and the sound…