What cylinder is Cadillac's Polaris? How much is a needle?

Cadillac SLS Xavi 4.6L is equipped with Cadillac's Polaris V8, which is known as the best engine in America. This powerful beast has all the advanced technologies of GM, such as D-VVT and aluminum alloy cylinder block, which seem to be out of touch with American engines. The displacement of 4.6 liters, coupled with the assistance of mechanical pressurization, can produce 320 horsepower at 6400 rpm. The engine has the function of VVT continuous variable valve timing, which effectively improves the output of low torque and high horsepower. The integrated intake manifold is cast in a special way, and there is no partition or connection between the intake manifold and the air collection chamber, which can not only reduce the space, but also make the sucked air flow smoother. A series of high-tech settings, such as adding piston-cooled fuel injection system, enlarging cooling water channel, multi-layer metal cylinder gasket, ETC electronic throttle control, 32-bit microcomputer ECM engine control module, SFI electronic sequential multi-point fuel injection system, have been widely used in many common technologies, and the power that this engine can exert is far from being fully explained by 320 horsepower in promotional materials.