I am looking for information on the late version VQ35 with HR heads (gen2/3) for a RWD manual swap. I've searched through the forum here and other places on the webs, and just wanted to reach out to the members here to see if I could verify a few things.
I am looking to learn what it would take to swap a late model VQ with HR heads into a 2005 G35 manual (Revup). Here are some things I have learned so far.
The Gen2/3 blocks will bolt to the CD009 6 speed (with some details on the clutch spacing I have yet to work out) The crankshaft position sensor is in a different location. Is there a known solution for this?
The blocks have different mount bosses than the rwd (custom mounts required, not a big deal)
The Revup timing chain covers (inner/outer) will bolt to the Gen2/3 block. Most rwd accessories will then be able to bolt up (may require some block trimming or modified brackets) Has anyone here installed the Revup covers with RWD accessories?
The thought was that the Revup valvetrain and timing covers could be used and run the engine off of the Revup ECU. I have read this is possible, but will require camshaft position sensor invertors? Cam sensors are in the valve covers not the back of the heads like the Revup. Would this work with the revup cams? Has anyone used revup cams on a Gen2/3 engine?
Has anyone here ran a gen2/3 fwd engine off of a Revup ECU?
Intake manifold I have yet to solve. Would the Revup lower intake manifold collector bolt to the FWD HR heads? They look very close in photographs. This would allow for the rwd upper plenum to be installed.
Hopefully there are some people on here that have experience with some of these things and can offer some information or advise.
Thanks for looking!

 

Through some research and looking at my ‘05 G35 I have answered these two questions.

The crank sensor mounts to the upper oil pan structure. This will need to be bolted to the Gen 3 FWD engine so the oil pan will clear the front crossmember properly. Once it is installed the Revup crank sensor could be installed in the correct position.



The Revup lower plenum collector will not bolt to the HR heads of the Gen 3 FWD engine. So that is not an option. Working on a solution that would utilize the Nisformance Holley High Ram intake adapter plate.
https://www.nisformance.com/FWD-Hi-r...nvq35defwd.htm

Another potential issue is the starter mounting. However it too bolts to the upper oil pan structure, so perhaps that will be solved when the Revup upper pan is swapped over.

Here is an image of what would need to be done for custom engine mounts to install the Gen 3 FWD block into the front crossmember of the rwd G35 coupe or 350z



Also just for proof another pic of the FWD block mounted to the CD009 transmission from the G/Z




Still looking to solve the camshaft position sensor location issue…
I’ll update this thread as I learn more.

 

It appears that Jim Wolf has a solution for the camshaft position sensors. They sell modified trigger wheels for the Maxima HR to run off of the Revup ecu.

 

This may have been a premature assumption…
I based this off of Surratt’s thread.
https://maxima.org/forums/all-motor/...ispreloading=1
reading this more carefully I realized that the RWD HR lower collected was being used. The RWD HR has a taller deck height block than the FWD HR. This of course changes the distance between the heads. Taking a look at the bolt pattern layouts for the 09+ FWD HR lower intake collector vs. the RWD VQ35DE (350z/G35), the bolt pattern appears to be the same.



If that’s the case, there may be a possibility to bolt the VQ35DE lower collector to the FWD HR heads. This would allow the VQ35DE OEM intake (or aftermarket intakes)to be installed. Should this be true, that would make this swap very feasible. The last challenge would be to confirm the possibility to use the RWD VQ35DE timing covers and accessory drive system.
With all of this in mind, I’m thinking it would be viable to purchase a FWD HR engine and start messing around. I would love to hear from anyone else who has played around with the newer FWD HR engine.

 

I found this article from 2017 stating that this car has a Vq35de block with HR heads. From the pictures it is clearly using the 350z upper plenum. If this is the case, I am interested to find out what lower collector was used to mat the HR heads and upper plenum. This was the only article I could find in the car.