Not too long ago, we were telling you that BMW’s N63 4.4-liter V8 engines are experiencing reliability issues and that in a lot of cases, the owners are downright disappointed in the way their plants ...

The BMW N63 series V8 is a high-performance engine, with different versions all putting out over 400 horsepower. It's definitely an innovative engine, as it includes important firsts for BMW and the ...

The problem: Timing chains on N63 engines have been found to stretch and wear out prematurely, resulting in premature valvetrain wear and reduced engine performance. Corrective action: BMW has come up ...

The S63 and the N63 are 4.4-liter V8 engines made by BMW and installed into its vehicles. While these two V8 engines have several similarities, they also have significant differences. Let's start with ...

Car enthusiasts of a certain age may feel particularly dated by the following fact: the first two powerplants to mark BMW's mass-market adoption of twin-turbo engines are about to start turning 20.

Originally published in the June 2015 issue of Road & Track. I have lots of friends who work on cars for a living. You could call them mechanics, but I think of them as supersleuths. I could write a ...