# Why Steel Pistons and Cylinder Heads? Why Now? Page: https://stenobird.com/podcast/cycle-world-podcast-6850183/why-steel-pistons-and-cylinder-heads-why-now Text version: https://stenobird.com/podcast/cycle-world-podcast-6850183/why-steel-pistons-and-cylinder-heads-why-now.md Podcast: [Cycle World Podcast](https://stenobird.com/podcast/cycle-world-podcast-6850183) Published: 2026-02-04T17:50:56+00:00 Episode link: https://podcasters.spotify.com/pod/show/cycle-world/episodes/Why-Steel-Pistons-and-Cylinder-Heads--Why-Now-e3ekv09 Audio file: https://anchor.fm/s/f21971c8/podcast/play/115030473/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-1-4%2F417469078-44100-2-073fe73dd33ed.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/cycle-world-podcast-6850183/episodes/why-steel-pistons-and-cylinder-heads-why-now Duration seconds: 3806 ## Resource In the early days of internal combustion engines, pistons were typically made of steel, but it wasn't long before aluminum took over (thanks, W.O. Bentley). But steel pistons and even cylinder heads are coming back in special applications. Kevin and Mark dive in to 3D printed steel pistons, turbo housings, and steel cylinder heads in F1 and other racing. The guys take a deep dive into boost, piston temperature, lean burn, diesel, additive manufacturing and so much more. ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/cycle-world-podcast-6850183/episodes/why-steel-pistons-and-cylinder-heads-why-now/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/cycle-world-podcast-6850183/why-steel-pistons-and-cylinder-heads-why-now.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.