I tend to agree with you to a certain point. I actually really liked the 4.6 North* very much other than that gasket issue & I think they are bargains in the used auto segment. Comfy boat that floated down the road with 300HP. They came with lots of features for the day (Liquid cooled Alternator ). Did burn a quart of oil every 1k which GM said was normal. I would love to get my hands on a, last year, rear weal drive variant in a Seville sedan. They just never received the popularity in the used market like say a BMW. In the era we're talking about was when they were trying to compete with German cars but you already know that I'm sure. Since we're on the subject of Northstars that begs my next question... What does your Screen name mean? Thanks!HT4100 was their first try at making a complicated unreliable engine.
I meant they perfected unreliability and overcomplexity. They are terrible engines. There is a reason a mint Caddy with low miles is $3k.
Low speed/Heavy = Lower Gears to give "Longer Life" for not just the engine but also the drive train.
High Speed/Light = Higher Gears to give "Longer Life" for not just the engine but also the drive train & MPG.
And to quote another website
"A smaller engine will need a lower rear end to give adequate acceleration. A more powerful engine can use a higher rear end to give relaxed cruising and a higher top speed."
So it seems to be a lot about the driver experience, expected driving in city, driving on the highway, etc. This is where the manufacturer has done a lot of homework for us. They've selected the avg "best" for the masses with options to change a step up or down.