Expo 2021 – Episode 22: Seat & Guide Machining (Part 2)
In an impromptu interview, John Callies and Chris Straub talk about Callies' contribution to Pontiac's racing program & the evolution of today’s cylinder head.
Episode 26 – Engine Builder Interview: John Callies
In episode 26 Joe Castello sits down with the legendary John Callies to talk about his amazing career in motorsports