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Tony
04-15-2009, 08:23 AM
Roughly what kind of pressure (psi) can I expect on a SBC w/SM exhaust and standard Merc raw water pump?

The reason Im asking is becase I'm running remote drain lines off the blocks, and bellhousing coolers. I plan on using those weatherhead mini ball valves on the ends of each line and wanted to be sure that my cooling system will not exceed the 30psi that the valves are rated for.

MOBILEMERCMAN
04-15-2009, 09:29 AM
Mercury spec for years has been 23-25 lb's at wot. it is possible with an obstruction to have more.