vavle cover breathers

« **on:** June 25, 2009, 10:53:24 AM »

i have a 455 olds engine that has been overhauled. The bottom end has been done for about 6 months works fine. The thing is my top took a shit so i went ahead redid my whole top end new heads, vavles etc. I ran the engine and it has alot off power but the breathers on my vavle covers mist out oil becomes a problem after awhile. WTF should i do

« **Reply #1 on:** June 25, 2009, 11:55:16 AM »

455 tend to make a lot of crank case pressure I would use moroso PT# 68788 lock in breathers and plumb into you headers for evac.
Hope this helps.

« **Reply #2 on:** June 28, 2009, 04:35:43 PM »

Running a PCV valve will help. PCV valves introduce manifold vacuum into the crankcase, which will drop crankcase pressure.

« **Reply #3 on:** June 28, 2009, 10:41:58 PM »

Enlarge the oil drian backs in the end of the heads , restrict the push rods (hdwr store roll pins in the upper ends ) put two large breathers on the Valve covers (one on each preferably towrds the front) and create a pcv using a Ford twist in valve cover grommet at the oil fill tube (pep boys) . Get a metal "chore girl" pot scrubber (super market) to create an anti climb "baffle" in the oil fill tube below the new PCV location. Call me if I can help you sort this out , started on Olds at a dlr in 1971

Tom

1smknjoe

vavle cover breathers

sturat 514

Re: vavle cover breathers

Jetaholic

Re: vavle cover breathers

jet boat performance

Re: vavle cover breathers