In Episode 4 Lake Speed Jr sits down engine building legend John Callies to dive into the anatomy of hydraulic roller lifters and the drawbacks and advantages of the roller over the flat tappet lifter.
After taking us through the ins-an-outs of roller lifter design, installation and performance, Lake and John are joined by Expo host, Joe Castello, for a live audience Q&A session.
Episode originally aired live on October 13, 2021.
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