???how Much Do Vent Tube Plugs Cost???
???how Much Do Vent Tube Plugs Cost??? 
Don't bother. Cut the front pipe after the Y going to the back, fill it with JB weld to plug it, and then pinch it at the end. Cut the rear tubes and do the same. That method has been working for me for 2,000 leak-free miles.
The coolant crossover tubes that bolt in at the front and rear of the heads. There's also a tube running between the front and rear underneath an LS1 intake, but there isn't enough clearance to keep it when switching to an LS6 intake.
you can get the new ls6 crossover tube and rear plugs pretty cheap. i know one of the sponsors has them for like $30 (for the line and plugs). otherwise check with yoru dealer. your gonna be pissed when the jbweld doesnt hold or something starts leaking and u have to pull everything apart.
