Billet VQ37HR block.
 

I just sent an email to MazworX.com to see if they would be interested in making a Billet block for our VQ37Hr. They already make one for the VQ35DE platform. They make a Wet and Dry version. Guess we will see what happens.
If anyone else has some value to add, please post it here.

I asked them to make me one a couple years ago, they were not interested. If they have changed their feelings on that, let me know, I may interested.

As you probably know, there are several outfits producing VR38 blocks already. They would also be extremely well prepared to machine a HR block; in some ways, the VR38 is more similar to the HR than the DE block is.

Maybe RJ Manufacturing

Phunk,
I just got an email back. They are interested if we can get a group buy of 5. So, if you are interested we need 3 more people. This can happen.

Sorry, I won't buy from them. I have my reasons and I will leave it at that.

Understood :tiphat:

I'm interested, if we can arrange international shipping.

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Phunk,
If you know of someone better please investigate.

If you are interested please understand these will not be cheap. I am not sure of the cost but I would expect around 10k.

The AMS VR38 blocks are 20k

https://www.mazworx.com/pro-street-b...5de-block.aspx

Subtract GT-R tax, I would brace for around 13-14g with sleeves for a HR block.

Damn that's gonna hurt. But if you trash one motor it will pay for itself, hence why I am at 800hp.

Hr or VHR?

same thing as far as a billet block is concerned

Here are my numbers. Too build a motor with Forged pistons, High quality rods, JWT C2 cams, Suckerpunch oil pump, and new everything you are looking at a minimum of 16k. That does include labor and machine shop bill. IF you buy a Bryant racing crank, etc that is extra. If you pop the motor, you are looking at that and around 1 1/2 yr. wait to get it back on the road. So, a Billet block will actually pay for itself if we can get one built properly and it can take the abuse. Just food for thought.

Yeah at that price point why not just swap in Gtr motor. Cast blocks hold up to 1500whp.

Or contact these guys. I believe they have built a 3,000 Hp Hr

A VR swap is something worth considering but it will come with some disadvantages, especially for someone who did an incremental build and already has tons of VQ specific components. Its pretty likely that youd need to switch to a full standalone for a VR swap as well, which can be a pretty large expense in itself. If the cost were equal, I would take a billet VQ over a cast VR. The negative on the billet VQ is the guinea pig factor for the first round of users. Side note, I would be afraid to use a billet VQ without an upgraded crank, as imagine the tragedy of losing that billet block to a cheap stock crankshaft.

Oh yeah, A Bryant racing crank would be a must. No way I would put a stock one in. LOL

Nothing bolts up. Our tranny will not work. It is more costly in the long run. Already had a conversation about it and mentioned it.

What about adapter plates or just running a gtr trans?

GTR trans, GR6, is a rear transaxle combined with the rear differential. While not impossible, it would be a pretty big deal to put one in a Z. At this point you’re almost out of reasons to not entirely switch platforms

Questions answered

Sub'd.

10k+ isnt worth it for me. I wont run over 600whp anyways.

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I just got off the phone with Mark. If we can get 5 people to commit we are looking at $9000 to $9500 for each block With the Darton Sleeves all machined and ready to go. He also suggested to upgrade the head stud size. This will require some machining on the head to accommodate the larger studs. He was recommending 1/2in. studs. As far as the crank is concerned he said he would switch over to a Bryant racing crank at around 1500hp. This is a whole lot cheaper than what I thought it would be.

You can also switch out to the VQ35HR heads if you are so inclined to do so and ditch the VVEL. You will need a standalone for this.

I'm just here to watch you spend money haha. This sounds interesting.

When I picked up my car Brian said one thing that stuck with me. It went something like this.

"Sorry Derrick that we can't turn it up more. The solutions are not out there to keep it reliable. We'll have to wait for more innovation to correct the VQ37VHR platform before we can."

After looking at my next list of upgrades it just didn't make since to go forward without the solution. So why the heck can't I push for the innovation to get this issue corrected? So, this is my push for just that. I can make this happen if I get 3 more people. So hang on for the ride and watch this. It may or may not happen. I am cool with that.

Sub'd. :tup:

Subbed for info

i want to see this happen.
This could be such a crazy build.

Probably not considering we need 3 more folks. We shall see.

Where is Bob and his money tree?

After seeing this thread, he's out there guarding it with his life.

He doesn't need it. I think he wants to be at a Max of 700 to 750hp. He will be fine at that level. This darn 1/2 mile stuff is going to require some more Horsey Power.

We all know he doesn't need it. But you'll never convince him to get in on the group buy with that attitude lol

LMAO, he already told me. His money tree is just about bare. He was watering and fertilizing it when I texted.

His money tree is just about bare and you just happen to have the money for a billet block. Hmmm.

Hotrodz better check his security cameras for the tree.