Engine swap

[Cbreeze1982]

Will a2003 5.7 Hemi install in a 2005 with a 5.7 , without any major changes, was told it wouldn't work but what I've seen it will just double checking before buying the 05, thanks guys

 

[HemiLonestar]

Do you have a 1500 or 2500/3500? 2003 doesn't use EGR, neither does 2005 2500/3500 but 2005 1500 does.

 

[Scottly]

IIRC, the 2003 1500 I had used a unique ECM...It didn't have that cylinder cut-off function. Ran like a scalded dog, but you couldn't tune it.... Mitsubishi made the ECM for it, IIRC.

 

[HemiLonestar]

If you mean unique in that it had an untunable separate ECM and TCM then yes, it was.......unique lol. Of course it didn't have "that cylinder cut-off function" (or MDS as it is more commonly known) because trucks didn't get that until 2006.