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Ordered a new water pump (part number 252-846) and need a thermostat for it. A lot say it's ls2 style and is a direct replacement for the original ls1 pump. Do I need the one piece or 2 piece thermostat/housing?
Car is an 02 which has the single piece stock. But what's confusing to me is the new pump supposedly is ls2 but yet is a direct swap whereas an ls2 pump isn't. It's really confusing.