The morosso valve covers im running on my 383 (Moroso 68371 Moroso Die Cast Aluminum Valve Covers)

Valve covers have 2 breather tubes on one side,, But no oil fill or place for a pcv valve on the other.. I just got two morosso breathers and slid over the tubes. I just havent been running a pcv valve. Is this really a problem? what can i do to fix it without getting new valve covers.

 

Are those circles on top a place for a knock-out? Some valve covers come with no holes, but have provisions (a thinner area) to knock a hole through for a fill plug or PCV valve. You should be able to tell by looking at the back side.

 

i bet your right.. I bet they are knockouts... and ill have to find a filler cap and a baffled pcv valve grommet

 

will a pcv valve do anything power wise?

 

I had a set of Edelbrock covers once that had the knockouts for a tab style twist on breather cap. Yours might have it for using a simple rubber push in 710 plug or grommet. Using a PCV valve is a good idea. Not necessarily for power wise, but for the sake of better crankcase ventilation (removing moisture), and giving pressure relief to gaskets/seals.

 

im lookin around about moroso stuff online. They have push in rubber grommets for 1.22 inch holes. Same with a filler cap, its just a push in style for a 1.22 hole. But they say only for covers with no logo. I hope they are knockouts. I didnt put them on the motor, so i didnt ever think about it really. I always kinda wondered, just didnt wanna take em off i guess.

 

It has to be drilled out. Talked to a moroso rep.

 

That's kind of a bummer...