LD vs. LDT Pistons

[CUMMINS]

Does anybody know what the difference between LD465 pistons and LDT465 pistons is, Is the piston bowl shaped differently for the turbo charged motors, I'm about to put a D turbo on my LD motor and was wondering what exactly is different about the two motors

 

[rdixiemiller]

There is no difference. The turbos were retrofits onto the LD engines. I believe the pump timing is a little different. I have seen deuces with the exhaust pipe hole torched through the fender, indicating trucks that originally had the LD engine.

 

[G744]

The -1A five ton multifuel engine used different pistons, injectors, piston cooling nozzles, turbo, timing, and fuel delivery rates for starters. All that to make about 25 more horses in reality.

dg

 

[red devils dude]

G744 5ton's use the LDS-465(note the "s") LD's come in a 1A too like mine.
rdixiemiller the non turbo truck's have the same fender's as the turbo truck's the pipe
goes out the same spot with both engines the difference is on a non turbo truck the exhaust
curves back under the truck to the muffler.

 

[rdixiemiller]

A lot of the older trucks dumped the exhaust behind the rear tandems. I have seen M35A1's that did not have the hole in the fender. Depends when they were made. I have seen fenders (not gassers) that have had the exhaust pipe hole torched through and the 2 little trim pieces installed. These trucks were at Howards, just like they came out of the Army.

 

[red devils dude]

I bet they were A1's with the LDS-427's.

 

[rice]

My 62 Studebaker M35A1 had the 427 w/turbo and the exhaust came out by the rear tandem, no hole in fender.

 

[red devils dude]

My 62 Studebaker M35A1 had the 427 w/turbo and the exhaust came out by the rear tandem, no hole in fender.

bingo

 

[CUMMINS]

my truck had a muffler with the exaust dumped between the tandems , but is now straight piped, I wanted to add a stack with the turbo but don't know exactly where to drill the hole.

 

[red devils dude]

I'll have some pic's soon of the fender that should show where you need to drill it.

 

[cranetruck]

This image should give you an idea about location of the vertical exhaust.

 

[CUMMINS]

It looks like the hole would be in the middle of the back of the fender, or is it slightly offset to the edge of the fender, thanks for the help

 

[cranetruck]

The bracket shown here will ultimately determine where the hole in the fender ends up for a vertical (plumb) install.

 

[rice]

My 1966 M45A2 has the underneath exhaust and no hole in the fender.

 

[DrFoster]

Rear exhaust:

 

[wallew]

Doc,
Yeah, but other than those FOUR THINGS, nice rig, right?

And are you ABSOLUTELY SURE the driver is a girl? Might be 'one of those kind' of guys. You know, the ones who LIKE girls like his passenger! The kind with large head lights...

That's the type of truck I'd like to build and enter into next years Real Truck Challenge with a group of SS members. We can say SS is our 'truck club's name'.

That might actually fly, right??

 

[Recovry4x4]

RAMs M275A2 has an LD465 and it has rear exit exhaust and is Cadillac quiet. There were many a -A2 with rear exit exhaust.

 

[DrFoster]

I don't think that having a truck pilot that people question it's gender is an idea that will fly... Funny 'tho.