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My name is ***** ***** I am a Volvo dealership technician. I am going to try to help with your question today. While the head will likely physically fit, I would not use it. The B5254T4 head is a different part number than the one from the B5254T2. I have no way to tell exactly what is different between the two. I looked up the valves and while they are the same, the springs are different. There could be other differences in the casting as well.