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We get a bunch of questions about LS steam port and coolant cross over fittings. The factory LS steam port system works very well, but a lot times when you get your swap engine the LS steam port fittings and tubes have been removed or get lost. Not to worry LSX Innovations has a ton of different LS steam port and coolant cross over fittings to get your swap going. You can also read up on LS steam port and coolant cross over fittings in our LS swap guide if you are unsure which LS steam port kit you need for your specific swap. All LSX Innovations LS steam port fittings and cross over fittings are CNC machined from Billet aluminum.