- Jul 12, 2019
- Reaction score
- Ram Year
- hemi 5.7
Big trucks are straight six because they have diesels. Straight six is the strongest, best balanced, of all engine architectures. No splayed journal bearings. So they run the cylinder pressures up to the moon. Can't do that on spark-ignited engines. Can only whiz them to high rpm. A straight six is overkill for a gasoline engine - V8's have the most compact architecture to pack more cylinders into the smallest volume.
Which is why I call out Stellantis for trying to put a BMW sport sedan engine into a pickup truck. It's all about fuel mileage now - not about durability or towing.
This is outside my wheelhouse, but I always thought straight six made a lot of sense in trucks? Towing is a big part of truck duty, same with durability, I would sooner suggest the high revving v8's we have now in half tons make more sense in sports cars like the vette, charger, and mustang (which is where all halfton v8's are currently as well).
But what do I know. I just want more towing oomph, don't care about 0 to 60 in the slightest.