The 426 is a legendary engine. Its development was covered in a previous article. https://www.challengerforum.com/articles/development-evolution-of-the-hemi-engine.33/
What the article doesn’t cover is The Sound, the Feel, the smell of fresh 426 dual carbed motor running in front of you. Would take another 426 over any Mass Produced New Chrysler's Ramos Arizpe, Mexico Saltillo Engine motor. Unless you have owned one, you will never know. Just saying. I love my 6.1, almost 0 maintenance compared to a points and carbs motor, but just not the same.