05-24-2012, 11:29 PM
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CC Member
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Join Date: Dec 2011
Cobra Make, Engine:
Posts: 45
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Not Ranked
Hi Gary
The problem is the z heads they use rubbish guides they are to soft, also check the valve springs they were to soft on mine 90-95 pounds on seat should be around 130 good news is my problem is fixed and my mustang goes like a bat out of hell ,cost me a bit of doh though as i bought the motor from a agent there and i wasn't going to ship the engine back from here, this is a comon problem even though ford racing won't admit it, i would not recomend this motor to anyone and they have lost a few sales from here after my debacle ive done around 1600mile's since and has used no oil so happy there aswell.
Good luck with it and keep a eye on it and don't let them feed you BS about pcv issue or improper intake gasket fitting All BS from ford racing, my expeirience soured what is a great sounding motor and i loved the way it idles but still bitter.
cheers chris.
Last edited by 68pony; 05-24-2012 at 11:37 PM..
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