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CATEGORY LISTINGS > DETROIT > 12.7 to 14.0 [ REFRESH ]
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12.7 to 14.0


Created On Friday December 01, 2017 21:55 Diesel Talk
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comealong
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Joined: Apr 2014

Note Friday December 01, 2017 21:55 View thread in raw text format
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Hello fellas , I need some enlightening?... How hard is it to swap and 14 litre into a 92 peterbilt ?basically I'm wondering about electronics ... The swapping the motor in is no problem ... But can I run my DDEC 2 12.7 ECM on the 14 ? Can I swap the engine harness from 12.7 onto the 14 litre ? Would I need to run old style injectors ? Can someone please set my wondering about to rest....wink

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92 379 Pete 12.7 Detroit,OO14613,3.90s,hay sleigh..
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benjamin2606
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Note Saturday December 02, 2017 06:54 View thread in raw text format
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Which 14L is it? DDEC 4, 5, or 6?

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2000 Western Star 4964 14L 550 S60
2003 Western Star 4900EX 12.7 500 S60
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comealong
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Note Saturday December 02, 2017 12:10 View thread in raw text format
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DDEC 5

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92 379 Pete 12.7 Detroit,OO14613,3.90s,hay sleigh..
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benjamin2606
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Note Saturday December 02, 2017 13:59 View thread in raw text format
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A few years ago Pittsburgh Power put a DDEC IV 14L into a DDEC V truck and it supposedly took them 2 weeks to get the wiring figured out. I'm guessing putting a V into a II is going to be at least as much fun. There's a company in Coos Bay, Oregon called Kustom Truck (kustomtruck.com) that specializes in wiring harnesses for gliders and engine conversions. They might have a kit or at least the answers you're looking for. I am curious though, why do you want to put an EGR engine into a pre-emissions truck?

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2000 Western Star 4964 14L 550 S60
2003 Western Star 4900EX 12.7 500 S60
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comealong
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Note Saturday December 02, 2017 21:11 View thread in raw text format
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When I get done it will NOT be an egr motor ... I want the bigger displacement and more torque I'm still curious ... Will my 12.7 head fit on the 14litre block ? I want to run my 2 electronics on it ? Maybe change injectors and harness ?

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92 379 Pete 12.7 Detroit,OO14613,3.90s,hay sleigh..
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benjamin2606
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Note Sunday December 03, 2017 22:15 View thread in raw text format
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I think it will bolt on to the 14L block but the 14L has that compact gear train and I'm pretty sure the cam/cam gear are 1 piece so you may run into issues with the DDEC V cam in the DDEC IV head...or it may just fit right in. One thing to keep in mind though, once that DDEC V block goes into that truck, as of December 18th, it requires Elogs in the US.

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2000 Western Star 4964 14L 550 S60
2003 Western Star 4900EX 12.7 500 S60
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