Performancepro Artesian 2 high flow is the pump you need for your higher head high flow applications. My goal is to get this GS400 Stepchild to the point to where I can feel confident to hop in it and drive anywhere at any time of the year (in Florida of course).Artesian 2 High Flow Water Pump by Performance Pro Pumps If so, that is the next thing on the car that I will address. I suspect that there may also be an issue with the Igniter conversion in the distributer, or the distributer itself. Doing things once and replacing common wear parts while working on an assembly is something the I have always tried to do.Īfter I get the intake, new vacuum lines, new fuel line, new transmission vacuum line, new PCV hose & valve, new thermostat, and new thermostat housing (also pretty corroded) put back on, I'll work on the tune. At that point, it would also get a new fan clutch, most likely an AC Delco unit. There are no oil pressure issues with my car and I don't want to create any either. I like that TA offers the timing cover and oil pump pre-assembled, with their booster plate and adjustable regulator. The front crank seal also leaks a little. The reason I'm considering replacing the timing cover and water pump is that the lower hose outlet on the cover is getting pretty corroded. The radiator seems OK, as it is pretty clean looking inside, hold pressure, and doesn't leak. Spending the time on it is something that I seem to be having an issue with lately. They were leaking (air/vacuum) on the passenger side. I'm currently swapping to the 2146 Performer manifold, since I needed to replace my intake gaskets, anyway. While my fan shroud, AC condenser, and pullies are original, in excellent condition, and very clean, the tune-up is something that I need to work on. I'm pretty much sold on the TA Performance products after reading this thread and another, on identifying the timing cover on a 455. Very inefficient design that we corrected." A stock type pump (and flow kooler) is "open", so pressure on the outlet side can bleed back into the inlet (high to low-pressure differential). Our pump casting seals against the timing cover so that the inlet and outlet cavities are separated from each other. One of the most important changes on our 455 pump is the sealing surface between the inlet cavity on the pump and the impeller which doesn't exist on any other pump (the surface between the impeller and the triangular inlet cavity in the picture below, up and left of the part number). More pressure in the cooling system prevents steam pockets from forming and reduces cooling system temperature. Our impeller is a positive displacement type so it prevents cavitation, builds more pressure, and flows much more than typical "finned" impeller designs (stock and flow kooler) that rely on the clearance between the fins and the timing cover to seal and build pressure. Our water pump casting has much larger water passages than a common pump and the casting is much thicker. The impeller is cast aluminum that we machine and have hard anodize coated to prevent corrosion. We use bearings, seals and flange that are made in America. "Our water pump is a cast aluminum housing that we machine in house and I personally assemble.
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