Whats your beef with the V8-6-4
Love your show but when I watched your video on "Never buy a car with this engine" I was really disappointed. I have had several cars with this engine, especially my 81 Deville I drove daily for 6 years. I often find that they work fine. It's a modified 500 engine to 368ci, with simple throttle body injection, and the best transmission GM ever made the TH400 to back it. The way the cylinder deactivation worked was the same way a Lock up torque converter and overdrive worked. Instead of lock up, it would go to 6, instead of overdrive, it would go to 4, under normal conditions it would switch to 4 without 6. It's a separate box from the computer and hardly a 'computer'. And the computers in 1980 and 1981, weren't even manufactured by GM, actually they were made by Eaton and had less problems. If you didn't want the v8-6-4 feature you snip 1 wire. As long as you changed the oil and maintained the car fair, they are solid as a rock. I'm tired of YouTubers bagging on this engine, when it was the most powerful cadillac engine of the 80s until the 4.9. One thing I will note as a flaw, if you didn't change the oil but rarely, like any engine the piston rings would wear out. When the cylinders deactivated it would suck up blow by oil and burn it. But that rarely happens unless the oil wasn't changed in 5 years. Please tell me, what makes it worse than the HT4100, because I have replaced them before the car hit 50,000 miles! The 368 was dropped because of emmissions only, the HT4100 was bad, my seville is on its 3rd. Please explain or stop this misconception. It's getting thrown under the bus to much with no good explanations to those who have one (or many in my case)
The main beef is this. If you shut cylinders off on an engine, some are running and some aren't. The thermal differences between the cold non-running cylinders and the hot running cylinders is enough to eventually warp the engines. Now your old caddy was cast. Iron doesn't have that problem, but the new ones are all cast aluminum and aluminum warps easily from thermal differences
Ask some of the many people who had that system deactivated when it started malfunctioning early in their ownership. I'm not talking about "click bait" either. I'm Scotty's age so was around when those engines came out and knew people who owned them and mechanics who worked on them. However here's a little "click bait" for members who may be too young to personally remember:
Why do you care so much about what people think about some ancient engine? It's long gone.