Haven’t had the chance to check out that K5 issue yet? I am curious what you find with that.
I got lucky with this van, got it all running and ready for paint and the interior build. But took it out and put it through the 4X4 test and found it has a Detroit locker in the rear and a limited slip diff in the front. It is a beast that wants to climb poles... :)
K5 has a long list of problems, mostly from sitting up in a barn before I got it and it not being touched a lot after I got into another building.
It sort of runs. When it does, the blazer does really well at driving pests away. Severe lack of oil control. Probably rings and or valve seals and guides.
The plan was always get a replacement 350.