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Oil pressure fitting on a BB?

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Old Mar 13, 2007 | 05:23 PM
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Default Oil pressure fitting on a BB?

Anybody know the size/threads for the oil pressure fitting on the side of the block on a 427? I've seen a lot of guys run a 90 degree fitting out of it but I can't tell if they first have a reducer and then the 90 degree fitting. Right now I don't have anything, only the female side (I'm converting from SB to BB..... )
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Old Mar 13, 2007 | 09:26 PM
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I think 3/8" NPT.
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Old Mar 14, 2007 | 06:35 AM
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I used a connector from Paregon (I think)...might be from '69-73 BB. One piece fitting with angled end. I think it came as a kit with a SS tube & line. Its my understanding that this was used on a lot of '69-73 BB's including Chevelles.

This might be it: http://www.zip-products.com/Corvette...E5E460B43CBB6C

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Old Mar 14, 2007 | 09:14 AM
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I got a fitting similar to the one in Jughead's picture from NAPA. I believe it was 3/8" NPT. My sending unit screwed into the top and a wire hooked to the top of that. I believe that the sending unit was 1/8" NPT.
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