For 4.8 5.3 5.7 6.0L LS Cylinder Head Coolant Steam 4 Port Crossover Hose Kit UK. 4 Port Coolant Steam Crossover Hose Kit. Compatible with: all GM LS series engines. Ties together all 4 coolant steam ports on LS series engines. Not compatible with “car” intakes, such as LS1, LS3, LS4, LS6, LS7 Camaro / Corvette. Compatible with truck intake manifolds. 4 orings, 4 bolts, 4 coolant ports, 1 -4AN cross fitting, 1 -4AN tee fitting, and 5 stainless steel, black nylon wrapped hoses. Thread sealant NOT included, but required. To install, bolt the coolant ports to the heads. Now wrap thread tape on the NPT threaded ends of each hose, then thread into coolant port and tighten. Next install the 4AN tee fitting on the rear of the engine, then run the 19.5 long hose to the front 4AN cross fitting. Europe(except Island Countries). But we’ll do reply you asap and try our best to solve your problems out. Believe us, every customer is taken as our important treasure. We’ll keep all of you updated if there’s any problems concerning logistics and so on. Our mails are sent on Gmail, sometimes they may be blocked or could not be sent into a certain mailbox.