HeadGames Pocket Port R: 1JZ Therapy Session

What makes a 1JZ head worthy of a 2JZ swap? The answer lies deep in the bowl — and today, Dave is diving in with precision, flow science, and a die grinder in hand. In this episode of HeadGames Motorworks, we showcase the Pocket Port R process on a 1JZ head, reshaping the combustion chamber and port bowls to match valve size targets and boost efficiency for serious power builds. If you want real flow gains, this is the porting no one’s showing you — until now. 📌 What you’ll learn in this video: The percentage target between valve size and bowl diameter How reshaping the chamber affects flow and detonation resistance Why porting for a 2JZ swap requires more than just bolt-ons Dave’s hand porting secrets, explained and shown in real time 🧪 No fluff. No smoke. Just raw technique from the shop that turns air into adrenaline. 🔔 Subscribe to HeadGames Motorworks for more high-flow knowledge bombs.