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This coolant pressure relief tube runs between the cylinder heads in the front of LS engines. This tube bolts directly to the cylinder heads and has a quick connect nipple that exits straight out from the left hand side of the engine above the water pump. The nipple is long enough to accept a hose and clamp instead of a factory quick connect fitting.
Tube also includes (2) 12602541 tube to head seals and (1) 12600254 tube dampner sleeve.