Crankcase Evac Pump

So you have two breathers and a PCV?? Even with two 1/2 in hole breathers it's not enough..The biggest problem was it came off the dyno into the car and then out on the highway for 30 min with that one 1/2 in hole for a vent.. Of course it's going to push out the seal on that valley tray and then every other seal that wasn't sealed within a inch of it's life.. And of course you were only driving 49 mph for the entire 30 min trip..:burnout:..;-) Let's face it you drove it like you stole it on a highway, no different than everyone of my customers have done for the last 37 years.. Now what to do... If it were me I would loose that valley tray you have and replace it with a nice heavy cast one from Indy.Then seal it with Ultra Black and let it cure for a day.Then I'd replace all the other gaskets and use Ultra Black on them and let those cure for a day also. Then address the breathers..loose the small push in style and go with the slip over 1 1/4 type. Now that it's sealed up again... the biggest thing..drive it Easy for 50 or 75 miles or more if you can keep your foot out of it and not out on the highway it needs to be stop and go city type driving.. IMO if you were to do this your oil leaks will be no more.. Best of luck with the leaks My low deck leaked 1% yours will seal up just give it some more time..easy miles


Only thing I haven't tried is replacing valley pan with different type. You are the 1st to suggest it is not good one. I gave up and brought it to a Mopar builder/mechanic. He has repaired valley pan twice, pan gasket twice and main seal twice. My builder says it's broken in on the dyno so I gave it a couple pulls but nothing crazy and it shouldn't be blowing gaskets like this. I will give an update once the vacuum pump is in.