What NOT to Do on a VR38 GTR Head Build

In this teardown video, we uncover a ticking time bomb—two different cylinder heads on the same VR38 engine, each running completely different valvetrain setups. The result? Failure. One head used a GSC setup, while the other was something else entirely, and the valve spring fitment wasn’t even close. We’ll break down how this happened, what went wrong, and show the proper rebuild in progress.