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TH400 oil cooler port thread size

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Old 06-07-2010, 09:13 AM
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Default TH400 oil cooler port thread size

I am planning on routing my lines for my tranny cooler this weekend and I need to know what size the outlets are on a turbo 400. I plan on running -6AN braided line but I still need to know what size adapter fitting I need. PLEASE HELP. Thank you
Old 06-07-2010, 02:37 PM
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I think its 1/2 not positive though
Old 06-07-2010, 05:37 PM
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1/4 npt, but don't crank 'em down too hard, it'll split the case.
Old 06-07-2010, 11:14 PM
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http://www.summitracing.com/parts/ATI-925137/

^^^ that is the correct fitting. the trans threads are not tapered like a standard pipe thread, which is why you can crack the case with a 1/4 npt fitting.



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