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CATEGORY LISTINGS > DETROIT > Differences between DDECIV and DDECV [ REFRESH ]
Thread Title:

Differences between DDECIV and DDECV


Created On Thursday May 07, 2015 01:14 Diesel Talk
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loweredd
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Note Thursday May 07, 2015 01:14 View users profile View thread in raw text format
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What are the physical differences? EGR? Different style injectors?
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grampa
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Note Thursday May 07, 2015 05:54 View thread in raw text format
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if you had a DDEC 3 or 4 you could buy a 5 change from head up to a 3 or 4 and use your 3 or 4 ecm ..you would have to use compact gear train egr cam..shortly i will have rekeyed cam gear hub so you can use earlier marine cam or any bolt in cam you prefer.. have been looking at building screw in injector cups to accept old style injectors..then you could buy DDEC5 ,change injector cups ,install injectors ,use your old intake and exhaust ,and down the road you go..
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loweredd
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Note Thursday May 07, 2015 07:06 View users profile View thread in raw text format
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EXACTLY what I wanted to hear! Thank you.
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Scraphauler
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Note Tuesday November 08, 2016 21:30 View thread in raw text format
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I know it's been awhile for this thread. Any updates on this, grampa? The DDEC III in my Pete will probably need to be rebuilt in the next year or so. I'd like to upgrade to a 14l when that time comes because my block doesn't have provisions for the piston coolers. My truck gets worked very hard doing local work. Empty I'm 53k and my loads are 78-90k pretty regularly with gusts up to just over 100k. I want to build the truck with this in mind so that it will last under these conditions.

Before reading this post, I was considering either going full DDEC V (changing the wiring and everything) and deleting the egr, or putting my DDEC III head on the DDEC V block.

From the research I've done, the pistons, gear train, and injectors are upgraded on the DDEC V. Is this correct? The updated injectors are the only reason I even considered the hassle of DDEC V then delete egr to get back to where I'm at now. Are they really any better or just different?

Now that I see that this may be an option in the future, the full DDEC V option isn't attractive at all. What I would love about the option you have here is that I'd be able to do injectors (my truck needs a 6 pack and I'm looking at 7014's), 700 horse marine cam, full tilt exhaust manifold (mine is cracked), and then swap these parts to the new engine.

I'm hoping you have some good news! Thanks in advance.

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98 Pete 378 daycab 12.7 15spd 46k rears

Edited: Tuesday November 08, 2016 at 21:32 by Scraphauler
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Scraphauler
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Note Sunday November 20, 2016 09:51 View thread in raw text format
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I haven't seen any recent posts by grampa. Does anyone know if he's still around on this forum?

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98 Pete 378 daycab 12.7 15spd 46k rears
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amishmafia00
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Note Wednesday December 07, 2016 23:53 View thread in raw text format
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Personally I don't know why anyone would still consider all that swapping to get a 14L. That's what guys did early on to get rid of the egr but those days are past.
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Scraphauler
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Note Thursday December 15, 2016 20:05 View thread in raw text format
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I just want it for the low rpm torque. I may end up inframing my DDEC III. I know that I can get all the power I would ever want out of the 12.7 but it doesn't have oil squirters and mine gets worked harder than most. I don't think I would damage anything right off the bat not having them, but I think it will live longer if it has them.

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98 Pete 378 daycab 12.7 15spd 46k rears
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Scraphauler
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Note Thursday December 15, 2016 20:07 View thread in raw text format
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Actually I want the better pistons and gear train as well.

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98 Pete 378 daycab 12.7 15spd 46k rears
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stump
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Note Thursday December 22, 2016 09:27 View thread in raw text format
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stump
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Note Thursday December 22, 2016 09:37 View thread in raw text format
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Check your block casting number Your 98 block might have the oiler holes in it just not the oilers. The block changed in mid 98 to accept the oilers.
Block numberpremium engines, ranging roughly from serial number 6R411,649 to serial number 6R740,000
produced from 1998 to 2003.
Seri

Edited: Thursday December 22, 2016 at 09:45 by stump
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Scraphauler
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Note Wednesday December 28, 2016 08:09 View thread in raw text format
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Thanks for the info stump. My 98 has a 97 block in it due to the build date. I had checked the serial # previously after I read that some had the holes but they were plugged.

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98 Pete 378 daycab 12.7 15spd 46k rears
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