Catch can fittings
 

Hey this is my first post, I got my BRZ a few months ago and have been working on it day and night. It had a turbo from the previous owner but I am re-doing everything. I am having a larger baffled catch can welded up and am switching the barbs on the block to AN fittings. However I cant seem to lock down what thread size the crank case vent and pcv valve are. I have searched far and wide and they seem to be 3/8 npt but I want to be sure before I order all the wrong fittings. Thanks!!!

Anyone? I spoke to someone who said the pcv is 3/8 bspt confusing me even more. Pleeeeease help.

anyone?

3/8 NPT threads into the block if you are deleting the PCV, I am absolutely 110% positive.

We are talking the crank case vent ( below the left side of the intake manifold if looking from the front of the car) and the pcv (under the ac compressor) correct? From my understanding I can vent both to atmo with a baffled catch can. Radium makes an AN adapter for the pcv which they claim to be bspt not npt.

If you want to check, go to Home Depot get a brass fitting. Try it out, heck you can even return it.