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Big Cam 400 in newer Peterbilt

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by NebraskaGMC, Sep 10, 2019.

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  1. Sep 10, 2019 #1
    NebraskaGMC

    NebraskaGMC Bobtail Member

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    I've had this idea for a long time since I love the mid 90's Peterbilt 379s, but I also love the old Big Cam Cummins motors. What would it take to put a Big Cam 3 into a mid 90s 379 with a 9 series Eaton Fuller 18 speed and still retain functionality of all gauges. At this point would it be possible to run E-logs as well just in case the laws change and I will be required to? Engine and transmission should bolt in place with only slight modifications if any, but the gauges and data-link is what I'm worried about.
     
    NebraskaGMC, Sep 10, 2019
    NebraskaGMC, Sep 10, 2019
    #1
    Rideandrepair Thanks this.
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  3. Sep 10, 2019 #2
    Collie

    Collie Guest

    Subscribing to thread,
    Wouldnt think it would take much, its a mechanical motor.
    Anyswap into a 379 should be easy. IF its a electronic motor, I always thought it was plug and play as well with the new engine harness and computer for that motor. Anyhow, intersted to see what others have to say.
    Big cam 400 swap would be cool.
    Personally i want to do a c15 swap in mine
     
    Collie, Sep 10, 2019
    Collie, Sep 10, 2019
    #2
    Rideandrepair and NebraskaGMC Thank this.
  4. Sep 10, 2019 #3
    NebraskaGMC

    NebraskaGMC Bobtail Member

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    My biggest concern is E-Logs since I'll be an O/O for a local company and I'll be required to run them, and I don't know if its possible to make that work with an NTC-400 or other variant of the big cam mechanical engines
     
    NebraskaGMC, Sep 10, 2019
    NebraskaGMC, Sep 10, 2019
    #3
    Rideandrepair Thanks this.
  5. Sep 10, 2019 #4
    singlescrewshaker

    singlescrewshaker Road Train Member

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    Find a different company. One that won't force ELD on a perfectly exempt truck..
     
    singlescrewshaker, Sep 10, 2019
    singlescrewshaker, Sep 10, 2019
    #4
    Rideandrepair, NebraskaGMC and Collie Thank this.
  7. Sep 10, 2019 #5
    NebraskaGMC

    NebraskaGMC Bobtail Member

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    I'm a little foggy on the laws for E-Logs. All of this company's trucks are non exempt thats why I assumed they required E-logs on their trucks. What makes a truck exempt? And are there any limitations as to distance nowadays with running paper logs?
     
    NebraskaGMC, Sep 10, 2019
    NebraskaGMC, Sep 10, 2019
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    Rideandrepair Thanks this.
  8. Sep 10, 2019 #6
    AModelCat

    AModelCat Road Train Member

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    Mid 90's trucks of any make generally don't have much in the ways of electronics.

    @OLDSKOOLERnWV and @wore out might be able to tell you more about getting a big cam in there.
     
    AModelCat, Sep 10, 2019
    AModelCat, Sep 10, 2019
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    singlescrewshaker and NebraskaGMC Thank this.
  9. Sep 10, 2019 #7
    singlescrewshaker

    singlescrewshaker Road Train Member

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    https://www.google.com/url?sa=t&sou...FjALegQIAxAB&usg=AOvVaw0zGdF74oOhwrF6NYJWpXwZ

    As I recall -1999 engine or older.
    -150 air mile radius
    -AG exempt commodities
    -only log 8 out of 30days
    Sounds like you'd be..:)
     
    singlescrewshaker, Sep 10, 2019
    singlescrewshaker, Sep 10, 2019
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    NebraskaGMC Thanks this.
  10. Sep 10, 2019 #8
    NebraskaGMC

    NebraskaGMC Bobtail Member

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    NebraskaGMC, Sep 10, 2019
    NebraskaGMC, Sep 10, 2019
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    singlescrewshaker Thanks this.
  11. Sep 10, 2019 #9
    Working2party

    Working2party Medium Load Member

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    Thing with Elogs, they have to have a computer so they can retrieve the data to prove when the trucks move. I believe the requirement for elogs starts in 97 and newer because of this. Possibly because that may have been around the time emissions no longer allowed factory mechanical engines in new OTR trucks. But not 100% sure.

    Most trucks through the 90’s and early 00 had their own gauge sensors separate from the ecm. With the exception of maybe engine temp. So your swap shouldn’t have an issue.

    The only issue you should have would be running in California, but others should chime in here and give you the known facts.
     
    Working2party, Sep 10, 2019
    Working2party, Sep 10, 2019
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    NebraskaGMC Thanks this.
  12. Sep 10, 2019 #10
    AModelCat

    AModelCat Road Train Member

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    No reason an elog unit couldn't be developed to work with a mechanical engine. The old mechanicals still used speed sensors.
     
    AModelCat, Sep 10, 2019
    AModelCat, Sep 10, 2019
    #10
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