DTA 360 vs DT408 vs DT466

Discussion in 'Diesel Tech' started by stu simpson, Sep 11, 2008.


  1. stu simpson

    stu simpson High Wheeler

    Joined:
    Dec 15, 2004
    Messages:
    1,953
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    portsmouth, nh
    Can anyone say definitively whether the DT408 was a punched out version of the DT/DTA360 or a scaled down version of the DT466?

    I am considering swapping in a DT408 instead of the DTA360 I currently have. The 408 is not on site to measure its dimensions. The DT/DTA360 is shorter and squatter than a DT466 which will not fit where a 360 mounts without significant fabrication and altering of the cab/doghouse.
     
  2. fredsterra

    fredsterra Y-Block King

    Joined:
    Oct 7, 2005
    Messages:
    3,697
    Likes Received:
    89
    Trophy Points:
    48
    Location:
    Hanson KY
    The DT360 was a total different engine than the DT408 and 466.

    The DT408 was an NGD (New Generation Diesel) It has a different cyl kit than a DT466 (NGD). The DT408 was used about 2 years in the early 90s. Then emissions led to the end of the DT408. Then they had a low torque 466 for 4700s and a high torque for heavy 4900's and larger trucks.

    The early DT466 (NGD) was available in a manual pump and electronic version. But they have been all electronic for about 10 years.

    The DT360 was finally a replacement for the dreaded 9.0 (DV550). The DT360 was a very dependable engine. But a little under powered for most customers. It was a great school bus engine in Kansas. But not for hill country or heavy loads!
     
  3. stu simpson

    stu simpson High Wheeler

    Joined:
    Dec 15, 2004
    Messages:
    1,953
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    portsmouth, nh
    So they are 3 seperate blocks? I know how the 360 is different from the 466 but I was unsure which block the 408 was developed from.
     
  4. nevrenufhp

    nevrenufhp Farmall Cub

    Joined:
    Apr 8, 2005
    Messages:
    44
    Likes Received:
    0
    Trophy Points:
    6
    Location:
    Raymond, WA
    They are 3 separate blocks, but you can directly swap out a 408 for a 466. The 360 has different mounts and such. The 408 was based off the 466, and yes, used in 94 & 95.
     
  5. fredsterra

    fredsterra Y-Block King

    Joined:
    Oct 7, 2005
    Messages:
    3,697
    Likes Received:
    89
    Trophy Points:
    48
    Location:
    Hanson KY
    It causes some confusion the the Truck Parts Biz. I wish Int. would have change the name from DT466 with the NGD New Generation Diesel. But the OLD Dt466 is the engine that saved the company! And there was too much brand recognition for the Dt466. A lot of truck buyers newer new they had been changed.

    The Dt 360 is from the (OLD) generation. It looks like a smaller version of the old Dt466.

    The NGD engines started as a Dt408-Dt466-I-530. All had the same block configuration. Then the Dt408 was dropped and they had the Dt466 and Dt466 HT and I530.
     
  6. Mark Ashford

    Mark Ashford Moderator.. or something Staff Member Moderator

    Joined:
    Jan 30, 2002
    Messages:
    3,989
    Likes Received:
    5
    Trophy Points:
    38
    Location:
    Woodinville, Wa
    Reserecting an old thread (aint google great!!)

    So is the DT408 a "good" engine, or an "OK" engine? Probably going to kick the tires on a '95 4700 bucket truck with the 408 but don't want to buy a turd.


    For the price I'm assuming it has either a ton of miles or a ton of hours (or both), as a non medium duty truck buyer, what should I be looking for?
     
  7. nevrenufhp

    nevrenufhp Farmall Cub

    Joined:
    Apr 8, 2005
    Messages:
    44
    Likes Received:
    0
    Trophy Points:
    6
    Location:
    Raymond, WA
    It is as legendary as the dt466, just a lower power rating. That is an easy fix, by the way. It is almost the same pump as what was used on the 94-98 dodge/Cummins. Free mods are great.
     
  8. diesel.k30

    diesel.k30 Farmall Cub

    Joined:
    Oct 13, 2020
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    1
    From what I have heard the DT408 is simply a shorter stroke version of the DT466, is this true and if so am I right in assuming that the 408 would probably be a better choice for a pickup/tow rig (besides obviously parts ability).

    Sent from my SM-G930V using Tapatalk
     

Share This Page