If you are interested in seeing the internals of the JLR V6 (and similar V*8) engines, the video below might interest you. This one came out of a V6 F-Type S (supercharged) that had a coolant failure leading to a head gasket failure. Besides the well-known coolant system issues, it looks like our engines are pretty robust.

 

I like the engine teardown videos from this guy. Here's a V8, but he's also got a couple of V6 videos.