Feasability of a 6.7 long block with 5.9 fuel system

[Mountainman234]

I have an ailing 2005 5.9 common rail and i have been wondering if it would be feasible to put a 6.7 long block in its place and have the existing fuel system run it. So lets hear some thoughts on this. Flame away.

 

[GRotman]

Injector hold downs are different.Otherwise yes it will work.

 

[Signature600]

I'm pretty sure there were some guys doing that way back when the 6.7L's first came out. Brown's diesel out in Cali, maybe?

Chris

 

[TMONEYDIESEL]

Rail is better on the 5.9 anyway, less issues.

 

[GOT-Torque]

I have an ailing 2005 5.9 common rail and i have been wondering if it would be feasible to put a 6.7 long block in its place and have the existing fuel system run it. So lets hear some thoughts on this. Flame away.

Don't know why it wouldn't work. I put a 6.7 longblock including the cp3, fuel rail, and lines into my 2003. Just used 5.9 injectors, wiring, and ECM. Works fine.

I think the only issue with fitment is if you try to run 6.7 injectors in a 5.9 head (some machining is required). IIRC, I reused the stock 6.7 hold downs with my 5.9 injectors, however I've slept since then too...

 

[Freezingsystems]

6.7 longblock into an 03? - Competition Diesel.Com - Bringing The BEST Together

I run the same works great.

 

[inline6power]

Reb did this when the first cab and chassis came out. Worked great. Made well over 1200 hp

Sent from my ADR6400L using Tapatalk

 

[Mountainman234]

So from reading the thread linked above i now understand it is possible to do but i will have to reuse my old injectors. This has been some good reading thanks for the info.