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Stock temp. sending unit in a Vortec engine
As many know the new Vortec heads have a 3/8" NPT hole for the temp. sending unit, stock for my '70 at least is 1/2" NPT. Well for lack of a better solution, I ended up putting my temp. sending unit in the intake. This interfered with my thermostat housing. I found a solution if anyone has the same problem. A company called PRC or Performance Rod and Custom makes a 1" thermostat housing spacer. I think the real purpose is a bypass for aluminum heads or something. It has two 3/8" NPT holes in it, I just pluged them and put them faceing back. Their # is 812-997-5905.
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'70 K-20 San Diego, CA
Last edited by poff; 09-16-2004 at 07:03 PM.
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09-16-2004, 02:03 AM
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