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Cummins NTC 290 inframe build

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Jan 29, 2022.

Page 2 of 5
  1. Jan 30, 2022 #11
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    FE8D46BF-02E4-426B-8B1F-2747F340552E.png
     

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    OLDSKOOLERnWV, Jan 30, 2022
    OLDSKOOLERnWV, Jan 30, 2022
    #11
    BoxCarKidd Thanks this.
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  3. Jan 30, 2022 #12
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Have you thought of building it back to a 335? My 1st truck had a warm 335, it did pretty good….
     
    OLDSKOOLERnWV, Jan 30, 2022
    OLDSKOOLERnWV, Jan 30, 2022
    #12
    BoxCarKidd and mile marker 27 Thank this.
  4. Jan 30, 2022 #13
    mile marker 27

    mile marker 27 Road Train Member

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    Yes, a 335 is definitely a consideration. There’s CPL’s, 0174, 0197 and 0318. Those are all 335’s with matching cam and non aftercooled.
     
    mile marker 27, Jan 30, 2022
    mile marker 27, Jan 30, 2022
    #13
    OLDSKOOLERnWV Thanks this.
  5. Jan 30, 2022 #14
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    If my memory is correct….. the 350 came to be from add ons to a 335….
     
    OLDSKOOLERnWV, Jan 30, 2022
    OLDSKOOLERnWV, Jan 30, 2022
    #14
    mile marker 27 Thanks this.
  7. Jan 30, 2022 #15
    mile marker 27

    mile marker 27 Road Train Member

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    29432048-420A-49B9-8E0E-6756877861D8.jpeg DDA2A19D-C25B-4142-B212-DC5F9DAF1807.jpeg 2A3CE485-F55C-4694-8417-15B6D7EDDBDC.jpeg
     
    mile marker 27, Jan 30, 2022
    mile marker 27, Jan 30, 2022
    #15
  8. Jan 30, 2022 #16
    mile marker 27

    mile marker 27 Road Train Member

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    So, it seems I need to pull the cam followers off to see what gasket is used?
     
    mile marker 27, Jan 30, 2022
    mile marker 27, Jan 30, 2022
    #16
  9. Jan 30, 2022 #17
    mile marker 27

    mile marker 27 Road Train Member

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    I’ve got a guy a couple miles from me who has a big truck salvage yard. Been in the business his whole life and actually put this 290 in the truck years ago, in replacement of a 8v71. He told me that he wouldn’t mess with adding an aftercooler, as I wouldn’t gain much. He stated the cam is the limiting factor on those engines. Any truth to that?
     
    mile marker 27, Jan 30, 2022
    mile marker 27, Jan 30, 2022
    #17
  10. Jan 30, 2022 #18
    mile marker 27

    mile marker 27 Road Train Member

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    You point me to what CPL I need and can I go 10% above that?
     
    mile marker 27, Jan 30, 2022
    mile marker 27, Jan 30, 2022
    #18
  11. Jan 30, 2022 #19
    mile marker 27

    mile marker 27 Road Train Member

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    DC6B1472-2ECE-453C-8961-3A91ADBA01E9.jpeg D943F511-17F6-49D0-8C07-219372B413AD.jpeg
    Here’s a pic of the cam follower.
     
    mile marker 27, Jan 30, 2022
    mile marker 27, Jan 30, 2022
    #19
  12. Jan 30, 2022 #20
    Inderjit

    Inderjit Medium Load Member

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    CPL #s 0021 and 0160 were good small cam NTC 350 engines. Timed at -.041"
     
    Inderjit, Jan 30, 2022
    Inderjit, Jan 30, 2022
    #20
    mile marker 27 and BoxCarKidd Thank this.
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