Ok, I have a built vq35DE, my crank was past the point of fixing so the machine shop supplied a crank that had that was perfect and left from a unfinished project. The motors together and we find out it's an 08 or vq35HR crank, all specs the same... Except the snub where the timing gear and under drive pulley slip on. Its a hair to thick.

So my question is can I buy a 08 lower timing gear and underdrive pulley or is the gear a different spec? Have they changed and of the timing from the de's to the HRs?? Goal is to not pull the motor apart and fix the crank.

I've called a shop ad Nissan, no one knows. Most people are so unaware of this because it's "unchartered" territory. But if anyone knows let's me know. Thanks.
Alex

 

why not just change bore size on that cylinder and double key it, probably be cheaper

 

Can u explain a little better? Are u talking about modding the crank or the gear and pulley?

 

You will need to do something about the flywheel too. The pickup is 180 off between HR and DE

 

Well the flywheel is already on. But it was the shops screw up and I think they are going to pull it out and I'll buy a new de crank. I just wanna be sure first