Hey guys in the middle of making a breather/catch can setup and was wondering if anyone knows where to get the fittings for the rear of the block?

http://www.ebay.com.au/itm/Rear-Bloc...53.m1438.l2649

I found those but i'd rather a pushlock one if posssible so i dont have to buy expensive fittings and can just run a normal hose off it.

Running a b20 bottom which has all ports blocked and im worried once i connect vtec the extra pressure could be bad for it.