From the 365 GT4 BB to the BB 512, power has remained stable at 360 bhp, but obtained at a lower engine speed. The increase in cubic capacity therefore benefited flexibility at low revs rather than pure performance. Since the BB 512, the engine has also changed for the better, with a dry sump at last (the first 365 GT4 BBs had problems getting out of lift when cornering fast with downforce!) A stronger double-disc clutch has also been fitted.