Anybody that has driven behind me on the tour de vin or Snakes to the Lake knows what I'm talking about.
I have a 427W built by a reputable builder down south. It has Probe forged pistons and AFR 185 heads, roller rockers and hydraulic lifters. I have Wayne Presley's stack intake manifold on it.
The motor has about 2000 miles on it. When I first started the motor for break in, the fuel mixture was extreemly rich. I burned about 1/4 tank of gas in 30 min run time. I later leaned it out but didn't want to mess with it on the initial start up.
From the first day it was burning
oil. I assumed the rings would seat and it would go away. Well, 2000 miles later it's still burning
oil.
It goes thru a quart every 250 miles. It's most obvious after I let off the gas on hard accelleration. Smoke seems to come out both sides but it's kind of hard to tell when your looking in the mirror.
I spoke with the engine builder a few times and he thinks the seal of the intake manifold isn't tight with the heads where intake meets the heads in the valley and is sucking
oil in thru there. I replaced the intake gaskets twice so far. The last time I changed them, I looked at the old gaskets and there was a crease along the whole length of the bottom of the gaskets so I think they're seating fine.
While I had the intake off, I noticed a fair amount of thick oily buildup in the top of the valve in every cylinder.
So far, the only things I can think of are leaking valve guides (brand new AFR Heads?) or maybe I washed the cylinder walls on that initial start up and the rings never seated.
Anybody got any recommendations on what I should do next or does anyone know of a good shop in the east bay that can look into it?