What size is oil cap brass fitting on STS kit?
 

I was going to relocate the oil return line from the cap to the valve cover via a 90 degree AN fitting. Problem is I don't know what size the fitting is, or if it needs to adapt differently (ie like AN8 to 3/8 NPT, etc) to connect to the adapter that connects the oil return line to the STS quick disconnect fitting/nipple.

Any info would be nice. :)

should be 1/4 in NPT. i replaced mine with a ss braided line the whole way from the oil pump to the oil cap, its 3/8 on the pump end and 1/4 in. on the valve cover end.

Thanks :)