I heard some people use a ddec 5 14L block and throw on a 12.7 ddec 4 head , while deleting all the egr stuff as well. I’m curious as to what the benefits are of doing this?? (More so what are the benefits of swapping the heads)
12.7 head - 14L block
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Detroit series60, Jan 9, 2021.
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same head other than they use different injectors ddec4 use n2 injectors ddec5 use n3 injectors
spsauerland Thanks this. -
They are NOT the same head.
The valves and combustion gas (air intake) ports are different on the EGR cylinder heads.
The EGR (DDEC 4 & 5) intake manifold will NOT bolt to a pre-EGR head.Last edited: Jan 11, 2021
The_Great_Corn Thanks this. -
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It is 100% possible. I've got one in my shop I'm working on now. Depending on which model 14L you're starting with you'll most likely have to have an adapter made for the cam shaft. After that it's pretty straightforward other than some custom programming
spsauerland and Vampire Thank this. -
Delete the 09 and run it as is
jsnell Thanks this. -
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09 it's probably a ddec6
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