πŸ”₯🏁 DragBoss Garage LIVE: History & Evolution of the 23Β° Chevy Cylinder Head with Chad Speier! 🏁πŸ”₯

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Shared June 27, 2026

πŸ”₯🏁 LIVE CHAT: The History & Evolution of the 23Β° Chevy Cylinder Head with Chad Speier! 🏁πŸ”₯ πŸ“… Date: Saturday, June 27, 2026 πŸ•– Time: 7:00 PM EST πŸ“ Channel: DragBoss Garage Join DragBoss Tim Halstead and special guest Chad Speier of Speier Racing Heads for an incredible deep dive into one of the most successful cylinder head designs in racing historyβ€”the legendary 23Β° Chevy cylinder head! πŸ†πŸ”₯ From its humble beginnings as a production small-block Chevrolet head to today's 900+ HP low-port monsters, we'll explore the complete evolution of the 23-degree platform and why it remains one of the most dominant cylinder head designs in drag racing, circle track, and high-performance engine building. Topics Include: βœ… The origins of the 23Β° Chevy cylinder head βœ… Production castings vs. modern race heads βœ… Port design evolution and airflow development πŸŒͺ️ βœ… Why low-port heads can make 900+ HP πŸ’ͺ βœ… Combustion chamber and valve angle changes πŸ”₯ βœ… Flow bench development and port velocity πŸ“ˆ βœ… Welding, epoxy, and custom port modifications πŸ› οΈ βœ… What separates winning cylinder heads from average ones 🏁 βœ… Then vs. Now: How technology changed the game Chad Speier is one of the most respected cylinder head developers in the industry and the founder of Speier Racing Heads, home of the famous 900 HP Low-Port 23Β° Cylinder Heads. This is your opportunity to hear decades of hard-earned knowledge, racing history, and cylinder head development directly from one of the best in the business. Whether you're into: 🏁 Drag Racing 🏁 Circle Track Racing 🏁 Small Block Chevy Engines 🏁 Cylinder Head Porting 🏁 Airflow Development 🏁 Engine Building 🏁 Pro Stock Technology 🏁 Race Engine Design …this is a live chat you do NOT want to miss! Bring your questions and join us LIVE! πŸ‘ Like πŸ”” Subscribe πŸ’¬ Comment your questions below πŸ“’ Share with your racing friends DragBoss Garage "Where you're always seeing and learning something new." #DragBossGarage #ChadSpeier #SpeierRacingHeads #23DegreeChevy #SmallBlockChevy #CylinderHeads #CylinderHeadPorting #Airflow #FlowBench #EngineBuilding #RaceEngines #DragRacing #CircleTrack #ProStock #ChevroletPerformance #HotRodding #Horsepower #PerformanceEngines #CylinderHeadDevelopment #RacingTechnology