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Old 08-19-2019, 04:12 PM   #1
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2V or 3V engine?

How can I tell if I have a 2V or 3V engine? It is a 2016 Winnebago Sightseer with the F53 chassis and 6.8L V10 engine. The chassis was built in 2015. Thanks.

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Old 08-19-2019, 04:18 PM   #2
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After 2005, 2 valve V10 are only used in E series chassis. E350 and E450.

You have a 3 valve.

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Old 08-19-2019, 04:55 PM   #3
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In addition to what "twinboat" has said...

Useful info at Ford Body Builder Advisory Service Web site, link here.
Includes 2015 F-53 specs (link here) and 2016 specs (link here).
Both show engine as "3V," meaning three-valve.
Your coach could be built on a 2015 or 2016 chassis. The 10th digit of the VIN (Vehicle Identification Number) will tell you which (link here).
VIN digit 8 is also supposed to tell you the engine type.
Your owner's manual available at this link.

Some of these links may answer other questions you have.
2008 Holiday Rambler Admiral 30PDD (Ford F-53 chassis)
2009 Honda Fit Sport
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Old 08-21-2019, 07:36 PM   #4
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Thanks for the comments. I am looking into getting a five star tuning kit for the engine and it shows the 3V responding better to the upgrade. I just installed a Hellwig rear sway bar and that made a big improvement. Hoping for the same results with the drivability With the changes to the engine/transmission. Any comments in this area would be appreciated as well. Thanks
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