Quick question. Whats the minimum engine compression on a 5.2l 318?

 

From my understand any engine should have at least 75 psi in each cylinder

 

I hope you mean 175. What is the normal compression?

 

I always recommend 125 psi as minimum compression. If you have less than 100 psi, you need to find out why.

 

The D is toast. Looking at a used motor with 180psi for 250.

 

Just for sh*t and giggles. What would i need for a 5.9L swap?

 

I'm going to pull it out this upcoming weekend and replace it the weekend after that.
Just want more time to find a good engine, til I can get a create engine next summer.

 

Rollin 180 psi is great compression. I'm not sure on the compression ratio is on the 5.2 but if you have the compression ratio you can multiply that times atmospheric pressure to get an idea where it should be. With 180 psi you are looking at a little over a 12:1 compression ratio at sea level atm pressure

 

I'm running about 152-158psi. I don't think you can get much better.

 

I had a vehicle at 92 psi and it ran good. Although I had it for 3 mints and sold it because I wanted something else, so idk how long the motor lasted