Will a 2005 G35 Sedan Engine fit in a 2003 Sedan Body?

Yup, same same.

Yep, as SwivelHips said. Same engine.

Not exactly the same engine... if it's a manual then the 05 has a rev-up. Also, the early 03s (03.0) have a very different computer... that may not be a problem though.

If it's an AT it's the same engine though.

I can also tell you with lots of cars, little stuff like sensors etc... can be in different locations from year to year, but that's usually not much of a problem.

With the info provided its the same engine as far as im concerned, Well until he provides more info. It will bolt in the same and thats all he's asked about thus far.






Why get specific if the OP isnt?

It's good info, actually, if one knows, why not share?

Because the OP might be unaware of the differances... he may not know how specific to be.

Better to be over-informed than under-informed.

And just so you know, my statement was not meant to be "correcting you" just giving the OP a little more info.

True true

I guess im just being lazy today.

Thanks for the info guys. I want those extra 20 hp from the 05 engine

I don't think you can simply just swap an 03 engine for an 06. ECU is also different on the revup compared to non revup which a few other misc parts.

Is this for both manual and automatic? I have an automatic.

Automatic will have different connectors on the engine harness...plus ECU will not be able to control the exhaust timing becuase it is not setup for that.

Differrent O2 sensors, possibly different ECU, ...

not worth the extra cost to go to a revup unless you swap trans and engine along with ECU and TCU all at the same time.....(just not worth the cost)

Ok, so I did my research and I found out that the 05 AT sedan engines were NOT rev-up so it should fit in my 03 car. So besides changing ECU, sensors and connections, is there anything else I should be aware of?

Will my 03 tranny work with the 05 engine?

^They changed the TCU in 04.5.... so it's kindof a long-shot

Well then I'm gonna have to swap the tranny too! Thanks!