Coolant is being pushed out of the coolant tank via the cap without the engine running hot (new hoses, t-stat, and water pump installed). I will replace the tank cap, but I'm betting on a blown Head Gasket. I am in the process of ordering a new cap and the HG kit from Atlantic British, anything else I should repalce while the engine is torn down? Like the front engine gasket? I have replaced head gaskets before without having the block skimmed, thoughts on this? Thanks in advance...