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I pulled the intake off my 06 LS2 again to see if I screwed up a port gasket or something else when I reassembled it and I see this "clean" looking bolt hole at the back of the valley, passenger side. Is this normal or did I remove something and not realize it?
I pulled the intake off my 06 LS2 again to see if I screwed up a port gasket or something else when I reassembled it and I see this "clean" looking bolt hole at the back of the valley, passenger side. Is this normal or did I remove something and not realize it?
That hole contains a coolant crossover plug. All LS heads have steam vents at the front and rear of the cylinder heads but only some of them have 4-corner venting. If you wanted to run 4-corner vebti g to get rid of hot spots in the rear cylinders, you would have to punch out that little plug to do it. I never ran the four corner, on a forced induction setup I would however.
That hole contains a coolant crossover plug. All LS heads have steam vents at the front and rear of the cylinder heads but only some of them have 4-corner venting. If you wanted to run 4-corner vebti g to get rid of hot spots in the rear cylinders, you would have to punch out that little plug to do it. I never ran the four corner, on a forced induction setup I would however.
I'm pretty sure the crossover plug is the block with the bolt "above" that open hole in the picture. There is one on the passenger side as well.
something missing?
