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Thread: 4.0L gear drive?

  1. #1
    Join Date
    Jun 2014
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    Dundee,Il
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    336

    Default 4.0L gear drive?

    Does anyone run a gear drive on their I6? I havnt looked for them yet was just wondering per an idea I had.....belt drives came into mind too. Thanks

  2. #2
    Join Date
    Sep 2009
    Location
    Chico, CA
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    29,847

    Default Re: 4.0L gear drive?

    Not sure what you mean here. Can you be more specific?
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  3. #3
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    Sorry for the timing. It replaces the chain

  4. #4
    Join Date
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    Default Re: 4.0L gear drive?

    Its*

  5. #5
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: 4.0L gear drive?

    I haven't heard of any belt drives, and thee is really no provision for one.
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  6. #6
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    They replace the timing chain set. Ive used em with the sbc and 4.3l gm but always had to remove material to get them to fit but i was wondering if anyone uses/used them. Cool sound but more accurate and zero stretch

  7. #7
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: 4.0L gear drive?

    Yes, I know what you mean now. The 4.0 is a very old school motor that has very few options for improved horsepower. Nothing is like a SBC where you can buy race parts at the dollar store
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  8. #8
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    No hp or tq gain just dead nuts timing and no stretch is what im trying to achieve. My bottom end is very tight so I was thinking a gear drive when I do replace the timing chain set.

  9. #9
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: 4.0L gear drive?

    I don't think they exist for the 4.0
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  10. #10
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    Ok ive been looking and there isnt any out there never was which is mind boggling since the 4.0 is used in alot of different applications

  11. #11
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: 4.0L gear drive?

    That is true, lots of them out there. But it is not considered a highly modifiable motor like the SBC
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  12. #12
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    I know which is a shame due to the potential for a nice torque monster to develop out of the motor. The more im learning about them the more I want to build a motor but the expense of truly one off parts will kill me sooner than later

  13. #13
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    Im on tapatalk and havnt figured out bios yet but you have a 4.3 gm in your xj?

  14. #14
    Join Date
    Sep 2009
    Location
    Chico, CA
    Posts
    29,847

    Default Re: 4.0L gear drive?

    Yes, I do
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  15. #15
    Join Date
    Jun 2014
    Location
    Dundee,Il
    Posts
    336

    Default Re: 4.0L gear drive?

    Nice im assuming it fit great due to space under the hood.

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