Hey I trying to figure if anyone know the size of the bolt thread that goes into the engine front cover? If u can also figure out what type of AN is that that will be great. thank u, khris

 

The stock fittings are NOT AN, they are metric-sized, with most likely a BPT thread. As I recall, the fitting are either 27 or 29mm (1-1/16" or 1-1/8" also work well enough), but I have no idea on the threading.

 

I know they not an fitting I am trying to figure out what is the same size as the bolt that goes into cover? I am thinking of doing my own twin oil cooler setup, I noticed summitracing sell pre made hose that can withstand 350 psi & heat, I also found a website that an to metric, all I need is the size front cover hold and rear or what thread size the bolt has on it? Thanks Rynberg, khris

 

They are 10mm with a 1.5mm pitch.
Earls makes a straight fitting to -10 line the part number is 9919FFK
Well i think they are 10mm any way dont qoute me on that