Article: https://dustrunnersauto.com/jeep-amc-4-liter/
I tried to keep this unbiased, but I won't lie, I absolutely love these engines and i've had quite a bit of experience with them. The reason I love these motors is the same reason most people like them: they simply dont break.
Just in my personal experience i've had 4.0 liters run a 5 cylinders for extended periods of time, run way way below operating temperature from lack of thermostat, run on basically no oil, etc. I've even put a hole and dented an oil pan on a 4.0 liter bad enough that the crank started hitting the pan, and the motor still ran just fine after welded the hole shut.
Clip appearances -
Jalopnik - https://www.youtube.com/watch?v=E37iypyafjg
POWERNATION - https://www.youtube.com/watch?v=sm1xzrapgGs
Berserker Offroad - https://www.youtube.com/watch?v=Sc-k3KCDjkQ
Jeepin Jimmy - https://www.youtube.com/watch?v=nBcF308O6a0
mgbeatlefan - https://www.youtube.com/watch?v=Fms3awTYoBY
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Gear I use to shoot my videos:
(Buying through these links supports the channel)
Panasonic G7: https://amzn.to/2FKsmKe
Panasonic 25mm F1.7: https://amzn.to/2X8LQhG
Rode Mic: https://amzn.to/2J0lrik
Tascam DR05: https://amzn.to/2LvYFjR
Neewer lights: https://amzn.to/2Xem68x