fatherdoug
Tonto Papadapolous
I posted part of this in the "What Did You Do To Your Dent Today", but thought it should have it's own thread.
Since the use of said hi-flow water pumps is controversial, I will post my experiences as time goes on. The pump I purchased is a Flow Kooler cast iron water pump with aluminum vanes.(P/N 1648CI) Purchase price was $116. They make an all aluminum version for the same price.
Initial installation went well. I had no problems with fitment. The pump also came with two gaskets, one of which was thicker. I think the thicker one is provided to allow for a little extra clearance. The pump did, however, come with two heater hose outlets(?). The second hole was a threaded hole, but there was no pipe plug provided to plug the hole. You either have to reuse the plug that is in your old pump, or purchase a plug.
I also replaced the fan clutch at the same time, since a worn clutch can also cause the water pump to prematurely fail. Also, finding a lower radiator hose for a supercooling radiator(4" tank top) was a bit of a chore. I ordered one from broncograveyard since both the description and the picture matched what I needed. When received, the hose was for the extra cooling radiator, which is an entirely different shape, and would not fit.
They did not show a listing for a supercooling radiator when called, using the Gates part#(which is also how they had it listed) There was only one parts house in my area that even listed the hose.(NAPA P/N 7799) The regional warehouse only had one in stock.
The end result of all this is that the engine temps SEEM to be a little cooler when climbing grades. Two trips up a 7% grade in 65 degree weather is hardly a convincing argument, but I will say that the engine temps are a little cooler as compared to previous similar conditions.
Previously, engine temps would climb to about 210 deg on the same grade. The last two trips(very similar conditions) pegged the engine temp at about 198 deg. At this point I am mildly pleased, but warmer weather on the same grade will be the telling factor. I will update as the summer progresses.
In summary, so far,
I forgot to mention the engine is a 400.
Since the use of said hi-flow water pumps is controversial, I will post my experiences as time goes on. The pump I purchased is a Flow Kooler cast iron water pump with aluminum vanes.(P/N 1648CI) Purchase price was $116. They make an all aluminum version for the same price.
Initial installation went well. I had no problems with fitment. The pump also came with two gaskets, one of which was thicker. I think the thicker one is provided to allow for a little extra clearance. The pump did, however, come with two heater hose outlets(?). The second hole was a threaded hole, but there was no pipe plug provided to plug the hole. You either have to reuse the plug that is in your old pump, or purchase a plug.
I also replaced the fan clutch at the same time, since a worn clutch can also cause the water pump to prematurely fail. Also, finding a lower radiator hose for a supercooling radiator(4" tank top) was a bit of a chore. I ordered one from broncograveyard since both the description and the picture matched what I needed. When received, the hose was for the extra cooling radiator, which is an entirely different shape, and would not fit.

The end result of all this is that the engine temps SEEM to be a little cooler when climbing grades. Two trips up a 7% grade in 65 degree weather is hardly a convincing argument, but I will say that the engine temps are a little cooler as compared to previous similar conditions.
Previously, engine temps would climb to about 210 deg on the same grade. The last two trips(very similar conditions) pegged the engine temp at about 198 deg. At this point I am mildly pleased, but warmer weather on the same grade will be the telling factor. I will update as the summer progresses.
In summary, so far,

I forgot to mention the engine is a 400.
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