![]() 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. Looks can be deceiving, but if it’s not a FlowKooler, it’s not high volume."Our water pump is a cast aluminum housing that we machine in house and I personally assemble. The factory and high quality replacement pumps push nearly that much more at idle than the cheap junk replacement pumps. The FlowKooler pump features a trick billet brass impeller that pushes roughly 30% more coolant at idle than the factory and high quality replacement pumps. There are 3 pumps available new: Cheap junk (notably substandard compared to the OE pumps, sold by many as ‘OE replacement’), high quality stock replacement (sold by us and some others as ‘stock replacement’, but sold incorrectly as ‘high volume’ by the unscrupulous, simply because they are better than the cheap not-so-great replacement pumps), and true high volume pumps, which are only made by FlowKooler. Will not clear dual V-belts driving a top-mount AC compressor.įor use with 3-groove V-belt crank pulleys, please order CS25101.īe careful of people advertising cheap high-volume water pumps, and even cheaper ‘stock’ replacement pumps. factory ’74-’85 472 / 500 / 425 / 368 with 2-groove crank pulley and 1 groove AC compressor pulley), and serpentine systems. High Volume Water Pump Late style, by FlowKoolerįits Cadillac 472, 500, 425, and 368 engines.įor use with front belt drive systems with 1 V-belt driving the Power Steering and AC compressor (i.e.
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