I'm leaking coolant from the passanger side from somewhere behind the block, where could it be comming from?

 

Well did you just install something? If so did you put the block off plug back in the head ( Probably not it it is hard to miss that one.). If not then it could be a leaking head gasket or it could be one of the blockoff plates that used to be for the coolant crossover tubes. Could be a heater hose. Just a few to check. Sorry I can't see it etc... Good luck!

 

Yeah i just did a cam swap, I didnt crack the heads off the block or anything.

 

Anyone else? Any hoses running back there that i may have knocked loose during my header install?

 

Yeah I can't tell you what it is for sure. get a flashlight and look around is all I can tell you. did you reuse your water pump gaskets? I just replace them now I have had to many start leaking afterwards. If so they could be leaking and running towards the back of the motor etc. Good luck!
Jeff