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Old 03-10-2015, 12:16 AM   #2
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Join Date: Feb 2012
Location: Southern Ohio
Posts: 262
Re: LS Steam tube routing

Indeed, drill and tap the water pump is one of several solutions.

You can also use a later model radiator with the steam tube inlet (and correct size hoses to match the smaller LS inlet/outlet), or weld in a port on the radiator side tanks.

For my C10 LS swap, I used an F-body water pump and Dirty Dingo spacers that already included a tapped fitting for the steam line.
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