Vehicle running warm 360 la

Dana67Dart said

I think what they are saying is the pressure on the engine side of the t stat does not try to keep the t stat closed due to its design. That way the thermostat wax pill does not have to push against any pressure from a high flow water pump.

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Different interpretations of the same wording, I guess, with neither one being wrong. To me it came across as an add-on sales pitch for high-flow water pump users: "If you're gonna use one of those, you gotta have one of these!" It is a good suggestion. I'd just try a simple thermostat swap first, before expending the money and effort of a high-flow pump swap. That's just my inner cheap-*** slacker doin' his thing.

@mopardude318: It's $8 cheaper directly from EMP/Stewart. No point in paying more than necessary. That link also says that "Robert Shaw" [sic] is actually making them, and Stewart is somehow modifying them. Robertshaw doesn't sell them anywhere else, so I'm guessing there's an exclusivity contract in place.

It bears repeating: Despite looking right, the Mr. Gasket version should be avoided at all costs.