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5.4 revised heads

Old 04-19-2017, 07:19 PM
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Default 5.4 revised heads

when did they go to the revised heads on the 5.4 my door sticker is 11/07 but the sticker on the motor says 11/05/07 just woundering because ill be doing the plugs and don't really want to deal with broken plugs, and what plugs will I need truck has 110k on it.
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Old 04-19-2017, 07:26 PM
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Are your coil pack boots brown or black? Old style are black, new style are brown.
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Old 04-19-2017, 07:40 PM
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not sure ill have to look
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Old 04-20-2017, 09:07 AM
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You should have the new heads. ENGINES (not trucks) made after 10/09/07 had the new ones.
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Old 04-20-2017, 09:09 AM
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If yours has the new heads, I recommend Motorcraft SP 509's
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Old 04-20-2017, 09:18 AM
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Your good to go if the motor build date is 11/05/07.. like NutKase said you have SP509"s .. replace with same and don't forget new boots and springs..
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Old 04-21-2017, 06:04 AM
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yep boots are brown and according to the dealer it takes the 509 plugs and they told me it has the revised heads. they don't look to hard to do no idea why the dealer wants 2.9 hours to do them but that is what the time/labor book says.
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Old 04-21-2017, 06:40 AM
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Then you do them.. easy job
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Old 04-21-2017, 07:50 AM
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Because in addition to 8 spark plugs, they have to R&I 8 coils as well. Like TR said... not a hard job to do.
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Old 04-23-2017, 09:09 AM
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Simple job
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