The OS Giken’s twin-cam head for the Nissan L-series inline-six is a mythical engine. The TC24-B1 was developed in the 80s by OS Giken’s founder Osamu Okazaki, but at tremendous cost. Its retail price was approximately the same as that of a brand new Fairlady Z, and as a result only nine were ever built. In the 2010s OS Giken reissued an updated version called the TC24-B1, allowing about a dozen more into the world. With so few made, it’s a rare opportunity to get to see one being assembled.
In an hour-long video, the Inside Japanese Factories channel takes viewers inside OS Giken’s workshop, where the TC24-B1 and OS Giken clutches are being assembled. The camera follows the entire assembly process, starting with a bare block as it transforms into a B1Z complete with DOHC head and gear-driven timing. It’s a mesmerizing look at how much precision, care, and soul is put into each one of these engines. It’s not every day that you can witness the creation of a masterpiece.
There’s something special about gear-driven camshafts on a car engine.
Confirming my choice for QoTW.
Akio Toyoda is a legend and seems to just be an actual great human, aside from anything else.
err, I clicked on the wrong article apparently. Haha. Feel free to delete this one!
I used to live 10 minutes from here, but I didn’t realize until I left Japan š
I did get to see some of their (and Tomitaku’s) cars at Okayama Circuit though for historic racing