Would it pass tech around here?  Yessir, no problem. If it were me, I'd run it from trans to cooler completely in -6 AN braided line. I did that to my car years ago and it made things much easier. Not having to deal with the hard lines around headers, starter, crossmember, shifter linkage, etc.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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