How do I replace the engine myself?

I'm not seeing any like youtube guides on how to change the engine in the 300 with the v6 but I'm seeing quite a lot for the charger. That's good news because they're both built on the same platform. So the steps are generally the same. I'm not a mechanic by trade, but I've had my share of DIY repairs on my own vehicles. You could also look into a subscription for Idenitifix for your specific vehicle, which should provide repair guides for just about everything. It's fairly inexpensive and I think you should be able to cancel anytime. I know I had to get one to do a clutch job on my 2016 Honda HRV.