Well, I have to turn to the experts for this question...I'm at a complete loss. I just finished rebuilding a 327. Deck milled 20, bored 30, torque plate honed, forged flat top pistons, ductile iron rings with moly facing, aluminum heads, small b&M blower. This thing smokes like crazy. If I start it up in the garage, you'd think the house was burning down. It puts out soooooo much white smoke it's rediculous. I have checked everything I can think of and still can't find the problem. The heads were redone with bronze guides, new valves, teflon mushroom oil seals. It idles fine, runs strong, but just smokes insanely. No water is being lost nor is oil getting into the radiator. I pulled off the intake to see if it was possibly sucking oil from the lifter valley. Nope...good seal on the gaskets. Plus, it's every cylinder. When I pull the plugs, they are all black and oil coated. I know the PCV was sucking some oil, but I disconnected it and plugged the vacuum line and still got smoke. I did a compression test...all cylinders at 165 lbs. Did a leak down test...all cylinders at 94% (kinda low but not so bad it would create this much smoke). When I pulled the intake to check the gaskets, I noticed the whole inside of the intake and runners on the heads were coated with oil. Also, the rotors on the blower are also coated with oil. I cleaned everything and put it back together to find the same smoking problem.

I am so frustrated because I think the cylinders were honed wrong for the type of rings I had and they never seated. I'm not sure if the leakdown test is too bad that it would create this much smoke, but I guess it's possible. The only other thing I can think of is that it is being sucked past the valves. I can't immagine this to be the case since I'm using teflon seals, but hey, who knows.

Anyone run into this problem before? Thanks for any help/advice you can give.