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water pump
400 gm block .40 over steel heads on gas. Approx. 500-hp.
how much water pump is needed? I see they start at $80. and go up to $220. for a edelbrock circle track. Already have a single pass allstar rad. 24" gonna add allstar shroud and have 20% reduction pullies. we will get the 32 pitch 15" fan 1-1/2 from rad. Will this setup cool this eng. and does one really need the $hi-dollar pumps? I dont mind paying for the stewart or edelbrock if it is necesssary.
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We've ran them both, and the extra money spent is well worth it. We never had any luck with the low dollar ones, they either don't move enough water, or spring a leak, or flat out break. The nice part about the better pieces are that they are bulletproof enough to run for a long time.
I'd scrap the reduction pulleys, and go 1:1 too.
Here is the most informative source on cooling.
http://www.stewartcomponents.com/Tech_Tips.htm
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I don't know if this person is still in business or not but we bought the private label pump from him in 09 and it works great.
http://www.theperformanceconnection.com/misc.php