3/8 pipe thread
3387a or a delco PF47
Radiator
On this engine I recommend you use an AC/Delco filter.
Yes.
Driver's side, towards the back of the engine block.
A 2000 Chevy Silverado K2500 with 6.0 Vortec engine.
1996-98 blazer/s10 4.3l vortec
1996 was the first year that all GM trucks went to Vortec engines - it IS a Vortec...
The 2001 model of the Light-Duty Silverado 1500, had an option of four engine sizes; a 6.0L Vortec V8 engine, a 4.3L Vortec V6, a 4.8L Vortec V8 or a 5.3L Vortec V8. The Heavy-Duty 1500HD comes with three engine options, these are 6.0L Vortec V8, 8.1L Vortec V8 and a 6.6L Duramax V8
The vortec has bigger pistons
Look at the intake manifold. A vortec engine has 8ea. All the others have 12ea.
Look and see if you find one. I just replaced the o-rings and gaskets on my 93 S10 Blazer 4WD, there is a block where the oil filter would normally go and hoses leading up to the remote oil filter location under the air filter housing, the oil filter housing has a cover on the opposite side of the hoses marked oil cooler where an oil cooler hose set would lead to an oil cooler if it had one. I suspect your blazer is like mine and doesn't have an oil cooler. The kit I had to get with the gaskets and o-rings was called an oil cooler repair kit. I have the 4.3 v6 with the cci vortec injection. I was wrong in telling you that my 93 S10 Blazer didn't have an oil cooler, I looked at it again today to help answer another question and found oil cooler lines leading from the remote oil filter housing. They go down which is why I didn't see them when I worked on the lines from the engine. there should be two oil lines running from above the oil filter to the rad, just like an a/t cooling line