I have a stock 426 Hemi that has about 3500 miles since the rebuild. it runs great, has good vacuum and plenty of power. I have noticed that after I run it hard or travel on the highway for a while it smokes blue when I come to a stop. it does not do it under mild driving conditions or at idle. I thought it might be intake valve seals so I installed a set of Viton seals on the intake valves but it still does it. After doing a cyl. leak test, the numbers look good for a stock engine, leakage in the teens and twenties for the most part. The engine has a high volume oil pump and I am wondering if its pumping too much oil up into the valve cover area under aggressive driving and pooling around the exhaust valves until it has a chance to go through the drain holes at the ends of the heads and back to the crankcase. curious if anyone has run into this problem before.
it has stock steel heads. Again, it only does it under hard driving or after a long highway run. any help appreciated. thanks