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GT350 Motor issues

This is a discussion on GT350 Motor issues within the Mustang GT350 General Discussions forums, part of the Mustang GT350 Forum category; I’m trying to decide what year GT350 to purchase. The 2018 Leadfoot Gray is my absolute ultimate choice. A few questions.... The motor issues of ...

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Thread: GT350 Motor issues

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    Junior Member Calipony's Avatar
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    GT350 Motor issues

    I’m trying to decide what year GT350 to purchase. The 2018 Leadfoot Gray is my absolute ultimate choice.
    A few questions....
    The motor issues of seizing, blowing, etc. , is this more common on certain years than others? I saw something about Ford Warranty replacing a blown motor with a new 2019 GT350R motor...? Does this solve all the issues? Have the 2019 R motors not had the same issues? Are there any gains with the 2019 R motor? Any other info is appreciated too.
    Thanks.

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    Member RJay's Avatar
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    All 2019's got the K555 GT350R motor. That motor shares its block with the 2020 GT500. The 2019 MY had some pretty late deliveries - I've only had mine 10 weeks (2900 miles) - but they seem to be holding up well. If you buy a 2018 ask them if the motor was replaced. Pop off the driver's side coil cover and look at the sticker on the side of the block. If it's a "J" motor it's probably the original, if it's a "K" motor it's probably a replacement, but a GOOD replacement!
    03reptile likes this.
    2019 GT350 - Finally arrived!
    2014 Mustang GT - Great car! Hard to see her go!
    1965 Mustang Fastback - Wish I still had it!

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    JWS
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    I would buy the 2019 for sure. with everything I have seen, 2017 - 2018 motors had issues.

    Be safe and don't take chances.... or try to save a few dollars with an older model with known motor problems. Also, 2019 has many changes and upgrades within the motor and other small areas.

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    Junior Member Calipony's Avatar
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    Quote Originally Posted by JWS View Post
    I would buy the 2019 for sure. with everything I have seen, 2017 - 2018 motors had issues.

    Be safe and don't take chances.... or try to save a few dollars with an older model with known motor problems. Also, 2019 has many changes and upgrades within the motor and other small areas.
    What kind of noticeable upgrades on the 2019s?
    johnny1 likes this.

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    JWS
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    Member RJay's Avatar
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    Quote Originally Posted by JWS View Post
    And they didn't even cover all the suspension and braking tweaks - just focused on the motor and the swing.
    2019 GT350 - Finally arrived!
    2014 Mustang GT - Great car! Hard to see her go!
    1965 Mustang Fastback - Wish I still had it!

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    Junior Member Madmitch02's Avatar
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    I have had my 2018 since September of last year. 14534 miles no issues with motor, but i am gonna pop off drivers side oil cover and check that out for sure!
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    2016 non R, almost 12k miles and no engine issues of any kind (knock wood). Original engine, non modified, oil consumption is no worse than any other high performance car I had.
    JWS likes this.
    16 GT350 Tech Pkg.......and loving it Cheif!

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    Junior Member Calipony's Avatar
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    Question: So the things upgraded in the 2019 motor, does this address why the earlier motors were popping. Also, What were the suspension and braking tweaks?


    Quote Originally Posted by RJay View Post
    Quote Originally Posted by JWS View Post

    And they didn't even cover all the suspension and braking tweaks - just focused on the motor and the swing.

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    Senior Member YBLEHSGT350's Avatar
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    I must be lucky 2018 Shelby Name:  Whip3.jpg
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Size:  105.0 KB- 903bhp 815 to the wheels - no issues... well except the hurt feelings from Corvette, ZL1, and Hellcat owners -
    Fast Fun & Ford - 2018 Shelby GT350 with 875 Whipple

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