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

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

DBG/DMI Live πŸ”₯ Too Many Cubic Inches, Not Enough Airflow 😳 Undersquare Engines 🏁 #cylinderheads
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DBG/DMI Live πŸ”₯ Too Many Cubic Inches, Not Enough Airflow 😳 Undersquare Engines 🏁 #cylinderheads

The IHRA Is Under Fireβ€”Here's What's Really Going On! Why Racers are in Disbelief!
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The IHRA Is Under Fireβ€”Here's What's Really Going On! Why Racers are in Disbelief!

Pop-Up Live in the Shop!
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Pop-Up Live in the Shop!

DBG: Live With Darin Morgan, Valve Size/Port Size, Engine/Power Band, OVER REV 12/30/25 7 pm .est
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DBG: Live With Darin Morgan, Valve Size/Port Size, Engine/Power Band, OVER REV 12/30/25 7 pm .est

HOW BAD Did Old Man's Garage Bill DAMAGE his Small Block? SBC and SBM HEADACHES!
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HOW BAD Did Old Man's Garage Bill DAMAGE his Small Block? SBC and SBM HEADACHES!

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Brian Tooley Explains His NEW LS Cylinder Heads (Canted Valve Design)

πŸ”₯ McLeod Racing Clutch Secrets Revealed! 🏁 Mr. Clutch Will Baty  πŸ”₯Live Chat 7/12/26  7 pm.est
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πŸ”₯ LIVE TECH SESSION: VALVES, VALVE DESIGN & MAX FLOW SECRETS! πŸ’¨πŸ πŸ“… 5/30/26 @ 6PM EST
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πŸ”₯ LIVE TECH SESSION: VALVES, VALVE DESIGN & MAX FLOW SECRETS! πŸ’¨πŸ πŸ“… 5/30/26 @ 6PM EST

Why Ed Refuses to Wrap His Exhaust Headers | Ask Ed Smith w Barry T
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Why Ed Refuses to Wrap His Exhaust Headers | Ask Ed Smith w Barry T

The PERFORMANCE SECRET NO ONE Talks About! Torque Converters EXPLAINED Like You’ve NEVER Seen!
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The PERFORMANCE SECRET NO ONE Talks About! Torque Converters EXPLAINED Like You’ve NEVER Seen!

XXXJ220 | Will the Big Cat Beat 220mph?
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XXXJ220 | Will the Big Cat Beat 220mph?

I Sherlock'd My Dead Big Block Chevy and Found Out Why It Broke!
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I Sherlock'd My Dead Big Block Chevy and Found Out Why It Broke!

πŸ”₯ APD Air Bleeds Part 4: INSIDE The Metering Block! 🏁 Carb Tuning Secrets w/ John Kyle
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πŸ”₯ APD Air Bleeds Part 4: INSIDE The Metering Block! 🏁 Carb Tuning Secrets w/ John Kyle

Millyard RC374 - FULL THROTTLE
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Labocosmetica Q&A

DOUBLE PASS BLOCK & HEAD COOLING!
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DOUBLE PASS BLOCK & HEAD COOLING!

Fuel Funnycar PTSD And Scavenging Parts For Our Digger, Plus A Blown Chevy Sled
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Fuel Funnycar PTSD And Scavenging Parts For Our Digger, Plus A Blown Chevy Sled

AFR GEN 3 Hemi 195cc Head Review With Flow Numbers. LS Guys Should Worry
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AFR GEN 3 Hemi 195cc Head Review With Flow Numbers. LS Guys Should Worry

How Could They Do It So Cheap !
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How Could They Do It So Cheap !

How we choose the correct camshaft events for your application.
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How we choose the correct camshaft events for your application.