new engine?

So I need a new engine for my car. I got a couple of quotes from local places. One $5-6k and the other $8k. This is with a used engine @ around 80k miles on it. I called around myself and the cost of the engine seems to be around $1,500. Now I USED to be a mechanic myself... in the 80's. I had 5...

So i was going to the mountains two weeks ago to snowboard and nothing happened until later after i had chains on and driving in the snow for quite some time, it started making a noise like timing belt but the sound was coming from the back of the engine so i freaked out because the snowstorm...

We have a 2001 that needs some kind of engine work. BMW of Irvine Quoted $3600 to remove and replace the engine or $1900 to pull the head and have it looked at. Unacceptable. The car overheated for the fourth time in two years on Friday (all new cooling system), I pulled over, let it cool for...