The Shocking Truth About the Pontiac 421 Super Duty – The Engine GM Killed With Its Own Hands!

The Shocking Truth About the Pontiac 421 Super Duty – The Engine GM Killed With Its Own Hands!
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In 1963, Pontiac built the 421 Super Duty—an engine so powerful it dominated NASCAR and drag strips. But instead of celebrating it, General Motors killed it from the inside. Why? Jealousy? Corporate control? Or something more?
This video uncovers the full story: from midnight tests and outlaw engineers to how the 421 secretly gave birth to the GTO legend.
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