The escapes didn't have manifold heat wrap. Their heads cracked. Not only did their heads crack; but their cars burnt to the ground.... My car just smoked for 2 weeks while I was still driving it trying to find the leak, lol.
Being as I was going 135-140mph when the smoke started, if that didn't cause a fire, but 36 escapes burnt to the ground going slow with no heat wrap, then I think that's a sign the heat wrap could have saved the car. And the fact the escapes had no heat wrap and cracked the head while driving to bingo and burnt to the ground tells me the wrap wasn't the cause on those engines, why would it be he cause on ours ?
That's just me... I'm sure other points could be made in the other direction as well. The bottom line is they are bad cylinder heads. Ford admitted it ( even if they didn't fix it ), so to put the blame on just about anything else other than poor design is sort of an excuse for ford. Wonder if the focus guys are still making excuses for ford as to why their pistons coming apart on stock cars...