Wizard
Member
###Actually being a "car engine" or a "truck engine" is much less about peak hp/torque numbers, and far more about construction of the engine and torque/hp curves. Take for example the chevy 4.3 and the turbo i4 they put in their trucks. They are clean sheat designed engines, specifically for trucks. I'm not an expert on this, but my understanding is that they have been tuned to produce their power low in the RPM band (torque), and not higher up which is more typical of "fast sedans". Other factors like materials and strength used in the crank shaft, pistons, block etc, are chosen specifically with the knowledge that this engine will be worked.
So the 3.6 definitely falls under car engine, I would not consider the 5.7 a car engine specifically, think it's much closer to a truck engine.
Being a mechanical wonder is completely irrelevant. It's not a truck engine. It's not a workhorse, it's just a really great engine dumped in a truck because FCA had no better option available as a base motor. I'm not saying it's a bad experience, or that it can't work well for some usages, but calling it a workhorse .... that goes way too far. The 6.4 (or 7.3 from Ford) is a workhorse.
HP and TQ are about construction of the engine I believe you thought of endurance if so all series engines are built to last at peak of their performance (exception being the movie designated builds or some weird experiments where the target is a one time proof of concept but those are not series engines). Truck engines are simply car engines that fit purpose -- purpose is carrying heavier loads or towing . The main difference between a truck and a car is the frame not much else. Here's an example . A MB E55 has 460hp and 560 n/m tq this is on par with a truck but the MB can't tow like a tuck can because its frame and suspension are
not build for that purpose.