Does anyone know what way should the thermostat should be facing on a 4.9 6 cylinder? I took my housing off today, and it didn't have one in it. So, I had one i bought awhile ago for it. it's been a long time time since i have replaced one.

 

I do believe that the part with the spring should go down into the engine.
Check the link below for a downloadable instruction list from Stant to be sure.

http://stant.com/brochure.cfm?brochu...ation_id=12127

 

Yes, the spring\copper thing goes into the manifold.

 

look for the drain hole also it should be on the bottom.

 

Thanks guys.