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What water pump for 416 ls3?

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Old 07-04-2016, 07:56 PM
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John4cam
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Default What water pump for 416 ls3?
Got my ls3 416 in after some wait. Converting my c5. Wondering what water pump would best suit this engine. Is a gm oe pump going to work? Or other opinions? Thanks.
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Old 07-04-2016, 09:27 PM
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Brandon619
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An OEM pump will do just fine but if one wants to maximize their gain go with an electric water pump.
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Old 07-04-2016, 09:40 PM
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John4cam
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Ok, I'm more worried about keeping temps at bay. Few extra horses for that price isn't worth it to me.
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Old 07-04-2016, 09:53 PM
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Brandon619
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Originally Posted by John4cam
Ok, I'm more worried about keeping temps at bay. Few extra horses for that price isn't worth it to me.
Then a larger capacity radiator and cooler temp thermostat will do the trick if your looking for cooler temps. Is this a N/A build or F/I build?
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Old 07-04-2016, 09:56 PM
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Stock LS3 or if FI (centri) LS1 and weld a bead on the shaft and bell.
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Old 07-04-2016, 10:33 PM
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John4cam
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Originally Posted by Brandon619
Then a larger capacity radiator and cooler temp thermostat will do the trick if your looking for cooler temps. Is this a N/A build or F/I build?
It's an na build. It's replacing a 408. Current setup seems to cool fine.
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