I was driving through the back roads of Alabama/Georgia with 22 other cobras a couple of weeks ago, when all of a sudden the engine in the car started to miss and lose power. I looked in the rear view mirror and clouds of white fog was coming out of my left exhaust. After a 90 mile tow back to the trailer and another 300 mile trailer ride back to home, I pulled the intake and the left side front water jacket at the intake had blown through to the intake of the #5 cylinder. It looked like it had just disintegrated.
Now, the motor is a Ford Racing crate engine with GT40 aluminum heads. I have never had any problems with it before this. I went ahead and replaced the intake gasket with a Fel-Pro 1250, did all the silicone setup, letting it cure for over 30 hours before starting the engine. Within minutes, the white smoke started to come out the left side again.
This time, I went ahead and took the heads off; sent the them and the intake to an engine machine shop where they pressure checked the heads, made sure nothing was warped, and cleaned it all up.
I replaced the head bolts with ARP studs, and after torquing to 80lbs, Per ARP, I reinstalled the intake using Edelbrock #7220 gaskets this time.
The engine started up perfectly! Well, the engine ran good, but I
STILL have white/grey colored fog coming out of the left exhaust. I went ahead and ran the engine up to temp, but the fog was still noticable. I don't think it is
oil because it dissapears the minute it comes out the exhaust.
Does anyone have any ideas of where to go from here? Help!!