1987 r20

[madmax908]

Greetings and Thanks!

I lurked around several different manufacturer boards before choosing my pickup. The amount of info here is amazing!

I picked up relatively clean (for NY) truck that needs the usual corner and door sills and seat & dash pad rehab.
I hope to use it for home improvement runs and the occasional deer.

The truck appears to have been some sort of fleet truck, 77k, 5.0 TBI, 4 speed, no air, disk/drum combo. The second owner I purchased it from had a small lawn maintenance business, and according to the inspection sticker put less than 2000 miles on the truck in the last year.
So far I've mostly cleaned it up and replaced light bulbs inside and out. (Thank you for the write up on dash LED replacements)

It starts right up, but smokes when warm, and trails blue smoke when driving.
A compression check shows all cylinders between 160-170 psi, with no real increase when squirting oil into the cylinders. Plugs from cylinders 7 & 8 were oil covered.
A quick peek in the oil fill shows the valve train to be oil crusted.

I'm leaning torwards replacing valve seals.
What does everyone else think?