BlueTeg

iTrader: (2)

I am in the middle of doing a VTEC head swap on my B20z and I've run into a slight snag regarding the PCV system.

Since the B20 blocks do not have an outlet to accept the PCV valve nipple (like the VTEC blocks do), and the VTEC valve covers do not have an outlet to accept the PCV valve nipple (like the 96+ nonvtec valve covers do) I am wondering if I can just drill a hole in the VTEC valve cover to accept the PCV valve nipple. From what I understand after reading the PCV thread in the common topics.....the fresh air that ventilates the crankcase is ingested through the intake tube, routed down the PCV hose, fed into the existing nipple/hole on all B-series valve covers, circulated through the crankcase, oil vapors and "dirty air" are then expelled either through an outlet on the block (like the 94-95 LS blocks and 94-01 B18c blocks) or through a hole on the 96+ nonvtec valvecover and sent back into the IM.

If drilling a hole in the VTEC valve cover is in fact a solution for the B20/vtec PCV problem then I need to figure out where to put the hole.

I had played with the idea of just drilling a hole of the diamater size and general location that the B20 and 96+ LS valve covers have (in the center of the valve cover a few inches to the right of the existing PCV inlet nipple) but I am worried about metal shavings falling into the inside of the valve cover. Wiping it clean or sucking them out with a shop vac isn't really an option because the baffle on the top of the valve cover would prevent from accessing the shavings and the hole that I drill through the top would be too small to fit a vaccum hose in there to suck them out.

I am now thinking that I will drill a hole in the oil cap to accept the PCV valve. For a variety of reasons......the main being that the oil cap is completely removable so I don't have to worry about any drilled plastic particles falling to the valve cover. Its plastic so I can go right through it w/ a dremel tool in a matter of seconds. When/if I ever want to sell my valve cover it still remains completely "stock". If I mess up the hole for whatever reason its alot cheaper to buy another oil cap than another valve cover. =p

Is there anything that I have overlooked in terms of functionality of the PCV system and rerouting the PCV valve to the oil cap that I should be aware of before I go forward?

Yosshaa

hye gabe do u have any hook ups for another b20 valve cover i buested the last one i got off u