Thread: crankcase pressure.....

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Originally Posted by lodilobo

So....really, I'm better off getting rid of the evac tubes that I have going from the valve cover breathers, to the collectors, and just running good breathers in the valve covers? The valve cover breathers will let it vent enough to keep from blowing the rear main?

yep i .it could be made to work jerry may know of a way .the manifold deal you may have seen on road racing engines i was goning to try this .i did make up some thing like this for a air boat i built a 526 for but with out the evac hookups that could work . you have to make sure the ex pressure at any rpm is not going to not let the evac valves from working is seamed to happen every time i try to use it on the street. so i just use push in breathers .the rear main seal deal was that the block could not vent the crank case so in that case it is going to and did past the rear main seal it did not pop it out but it did push some oil past it not gallons but a good drip .on that block the rear main seal was the weak link .but most of the time it will blow the dip stick out