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Weird holes in motor over oil filter


CustomGTP

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On the top of the oil filter there are two holes, one on the left has a yello screw-in plug in it and the other looks like the same threaded hole next to it but with no plug. They are about 1/2" to 3/4" in diameter.

Any input?

Thanx

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OIL COOLER LINES!!!!!!!!  wow time for bed

night

Yup, that's what they are... Yes, sometimes when your tired the brain just doesn't work so well! :P So why did your motor have the one hole plugged with the yellow plastic cap? Did you buy that motor for your project used or rebuilt, or pull it from a donor youself?

Just curious when the anticipated initial fire-up is going to be... Maybe next weekend? With those NASCAR boys in your backyard at State Fair Park, the cops wouldn't notice you racin' round the neighborhood I'd think!! :D;)

'09 Cadillac CTS-4 3.6 direct injection, 128 K mi.
'15 Chevy Tahoe LTZ, 5.3i V8, 125 K mi
'70 Firebird Formula 400, Bored+.04, RAIII heads, M21 4spd., in-process restoration!

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