Thinking about it now, the only way the crankcase pressure gets to the rocker area is the pushrod holes which isn't very much after they're filled with pushrods so yea, I can see that now. Same with the dipstick, not a very large area. Take into consideration the area of the front seal and I guess it becomes the easiest relief valve.

What about a non filtered vent line from the valve covers to the flame arrestors? Hmmm, I'm pretty sure that's the way they were from the factory. Probably created my problem with the K&N valve cover vents.

Thats why it needs, IMO.

Something to help suck out the crankcase pressure.

Hell, stock carbed HP500's have a vent line from each valve cover going up to the flame arrestor from the factory.

I don't think it'll do much sucking but it'll be a free flowing vent unable to become restricted by an oil soaked breather.

Those k/n breathers suck . It could very well be you need more crankcase venting.

Oh it will suck some of the pressure out for sure.

Go out for a cruise, pop the hatch enough to get your hands on the flame arrestors and see how much it sucks your hands at 3500 RPM's.

Also dont do anything to try to keep the dip stick from blowing out. If that gets stuck in, the pressure will blow out somewhere else, like that gasket again.

That's how my blower motors are set up, two 3/4" hoses per motor from non filtered vent to flame arrestor.

I'm pretty sure getting rid of them will fix my problem because the only time my dipsticks were pushed out is when I had a few hours since I'd rinsed the oil out of them. I just never put two and two together without some additional input. When you put all the pieces together, Oil soaked breathers, (which is basically a clogged vent given the volume of air the pistons are displacing), dipsticks pushed out, The front seal would logically be the weakest relief valve. And one more thing I just thought of, last weekend one of my breathers was in the bilge when I put the boat on the trailer, but it wasn't the motor that pushed the front seal out. I'll update after I run with some open tubing from the valve covers the the flame arrestors but I believe that will fix all issues. QUESTION: What effect if any would elevated crankcase pressure have on oil presssure?

Agreed sir.

Wrong seal?