There are 8 freeze plugs.
84 has a vacuum advance 89 has an electronic advance Thats the only diff.
.035
40 FT. LBS
Orange, then light blue, then in 89, black.
NO. Not even close.
10w-40, until 89. Then 5w-30.
No. Not without switching the cylinder heads. I think it was 89, Chevy came out with the 1st generation Vortec heads, which require a different intake.
10w-40 up until 89, then 5w-30.
You are most likely overheating.
It can be done. Requires experience. Your results may vary.
At the back of the block, near the distributor.
In 89, Chevy introduced the 1st generation vortec head. It has a different angle, thus using a different intake manifold, and self adjusting rocker arm.