Have a built LS Vtec engine that I am having a problem with. Got the car up and running and noticed there was alot of coolant inside the oil and could not bleed. Went ahead and changed the head gasket, got everything together and went and put fresh oil and coolant. As I am pouring the coolant in, I hear the coolant hitting the block from my Return for the catchcan I have. I have not started the car yet, and the coolant is already filling inside the block.

Engine is sleeved can't remember by who, head was resurfaced and pressure tested. Using a TYPE R Head gasket. This is the first time I had a problem like this.

Give me some inputs thanks

 

Seems like you have a pretty obvious crack or leak.

Headstuds new?

Sleeves not sunk?

 

Headstuds were new, i have a feeling sleeves or damaged block. Just does not make sense how coolant will be inside the block if it has not started yet

 

Double check the vacuum lines and coolant lines around the intake manifold, iacv, and throttle body. It's very easy to mix them up and end up pumping coolant into the combustion chamber.