valve cover

Uitlmate PCV mods you would want if you are making 25+ psi! Ross's Check Valve Inserts are spring and check ball loaded, which opens up during idle by vacuum while under boost it'll shut which will prevent any boost from entering the crankcase. Like new OEM Valve Cover (<300 miles) WITH Ross...

I’ve been looking into upgrading the valve cover for my engine build but I’m not sure which option is best. I’m considering a few different designs and materials, but I’m curious to know what others have used or recommend. Has anyone here replaced their valve cover with a high-performance one...