On the back side of the block there is a black metal canister that has an opening that goes through the block into the crankshaft/rod area. It has a valve thing at the top that connects to the bottom of the intake manifold by a rubber hose. What is this canister and can you buy the little valve thing at the top where the rubber hose from the I/M connects to the canister.

 

its the stock catch can... it is used for the PCV system... you can get the valve.. "PCV valve" at any auto parts store..

 

Thanks, I was hoping that was what it was.