I've seen well maintained fleet foci with 600k on stock engines... never had the head or pan pulled. They were zetec based
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2002 - Twilight Blue ZTS Sedan
Built Motor, Getrag w/ Quaife, Eibach Suspension, GT3071R Turbo.. Destroying Tires thru 3rd @ 10psi = Priceless. 20+psi soon to come.
1987 MKIII Supra Targa