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RollinHard · 03-14-2018, **(Subject: 2250 replace a 2350 )**

Hey guys we had a crank break In a truck it's a 2012 isx cm2250. My boss located a complete 2016 isx cm2350 and we are wondering if it's possible to drop it in or is there to many differences.
Thanks Curtis

Rawze · 03-14-2018, **(Subject: 2250 replace a 2350 )**

The emissions system wiring and control circuits are quite different.

I have seen a few guys take 2350 engines and put on all 2250 wiring + 2250 ECM. The ECM needs custom programming for it to work correctly like that. The 2350 has higher compression ratio, different injector designs and spray, different boost requirements, and a few other things that require compensation for it to run right.

- I have had to straighten out a few for people that a couple dealerships have sent to me because they just would not run quite right. Apparently there are some OEM shops out there using 2350 blocks to replace 2250 engines.

RollinHard · 03-14-2018, **(Subject: 2250 replace a 2350 )**

Awesome thanks alot for the reply Rawze

RollinHard · 03-14-2018, **(Subject: 2250 replace a 2350 )**

Hey here another question I have short block that was on my 2008 isx 871 could we use that with the 2250 stuff

RollinHard · 03-14-2018, **(Subject: 2250 replace a 2350 )**

As in bolt that head and all its own stuff on it

Rawze · 03-14-2018, **(Subject: 2250 replace a 2350 )**

(03-14-2018 )RollinHard Wrote: Hey here another question I have short block that was on my 2008 isx 871 could we use that with the 2250 stuff

I have not seen anyone do this myself yet.