So I’ve been truck shopping and came across an Avalanche 2500 with the 8.1 big block. Does anyone have any experience with that motor. It has a lot of miles but the truck looks extremely cle
I went back and forth on 8.1 vs. 6.0 in the search for a 2500 burb. I settled on the 6.0 because of parts availability and interchangeability with others I own, especially the jeep. Essentially I'm towing a spare drivetrain (all sensors, accessories, etc).
That being said, the 8.1 is a "better" heavy truck engine. It also should have the upgraded 4L85e behind it.
What's a lot of miles? They tend to show low oil pressure with high miles, and I read a lot about oil consumption. There's a fairly common issue something to do with intake seals that contributes to consumption.