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  1. #1
    jam019's Avatar
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    Replacing the valves

    I have a 2004 RXP w/70hrs I'm replacing the valves but going to use the same springs I'm not looking to race the machine just want it to be reliable and last any suggestions.


  2. #2
    Moderator Snoman's Avatar
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    New valve seals and supertech valaves,you should be good to go..have the head checked for trueness and dont forget a new head gasket and head bolts..
    Last edited by Snoman; 10-13-2013 at 12:48 PM.

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  4. #3
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by jam019 View Post
    I have a 2004 RXP w/70hrs I'm replacing the valves but going to use the same springs I'm not looking to race the machine just want it to be reliable and last any suggestions.
    Definitely go with the Supertech valves. They are way better than the stock valves and also cheaper. They are currently on sale in the forums online store
    http://www.4-tecperformance.com/inde...oducts_id=2114

    You will need a new head gasket
    http://www.4-tecperformance.com/inde...roducts_id=823

    and a new set of rocker shaft bolts
    http://www.4-tecperformance.com/inde...roducts_id=822

  5. #4
    jam019's Avatar
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    Quote Originally Posted by Green Hulk View Post
    Quote Originally Posted by jam019 View Post
    I have a 2004 RXP w/70hrs I'm replacing the valves but going to use the same springs I'm not looking to race the machine just want it to be reliable and last any suggestions.
    Definitely go with the Supertech valves. They are way better than the stock valves and also cheaper. They are currently on sale in the forums online store
    http://www.4-tecperformance.com/inde...oducts_id=2114

    You will need a new head gasket
    http://www.4-tecperformance.com/inde...roducts_id=823

    and a new set of rocker shaft bolts
    http://www.4-tecperformance.com/inde...roducts_id=822
    Ok guys, thanks for the info...

  6. #5

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    Dec 2008
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    Greenville, SC
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    I am in a similar position as you. I have an 04 GTX 4 Tec SC with about 79 hours. This will be my winter project. I plan to change the flywheel bolts as well. I have a manual but it does not seem to take you step by step. It seems to focus on main items and assume you know how to get to that point. I wish I could find a general step by step to start from. Please keep us informed. I am interested in any tips you pick up along the way. Thanks.

  7. #6
    +1 on the Supertechs, but 4Tec engines are hard on the exhaust seats, I have seen carbon and erosion on most exhaust seats, so it is a good idea to check the seats carefully and get a seat job done when installing new valves.


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