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Old 05-15-2010, 03:09 PM   #1
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Is a stock SVT head able to be milled

I have a head that got a little warm/warped,just wondering if I can have it plane/decked. Just looking for some addvice,or should I just look for a new/used head? Motor was still able to run/start was a hard start but sounded fine after it fired.


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Old 05-16-2010, 12:01 AM   #2
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You can't mill the head much at all because of how close the valves come to the pistons. One option is to mill the head then run a standard Zetec head gasket and it will get your compression back within spec.
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Old 05-16-2010, 12:50 AM   #3
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i thought the standard zetec gaskets are thinner? so that would make the valves even closer and compression higher than you really want
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Old 05-16-2010, 08:53 AM   #4
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Anyone else with ideas.
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Old 05-16-2010, 09:31 AM   #5
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i thought the standard zetec gaskets are thinner? so that would make the valves even closer and compression higher than you really want
Oh whoops...that's right. Yep, had it backwards. BUT, Cometic sells different thicknesses. Stock SVT gasket is .041" whereas Cometic goes as high as .098".
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Old 05-16-2010, 11:13 AM   #6
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^^ good idea. just up the thickness on the gasket to help compensate.
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Old 05-16-2010, 01:10 PM   #7
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Yes sounds good I will see what I cant get done thanks for the advice.
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Old 05-16-2010, 01:12 PM   #8
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How about switching to regular Zetec pistons & rods? They have valve reliefs cut on both the intake and exhaust sides.
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Old 05-16-2010, 01:34 PM   #9
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Not even sure that would help and also that's really expensive. Unless he got forged pistons and rods, putting Zetec stuff in there would be a huge downgrade.
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Old 05-16-2010, 02:19 PM   #10
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Not really. The stock Zetec rods and pistons should be good for ~240whp. He may even notice a slight bump in compression (free power).
Also, the SVT pistons are cast, just like the stock ones. I've seen more SVT pistons fail/melt than standard Zetec ones.
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