Many car enthusiasts and collectors of Japanese sports cars have heard strange rumors about the existence of the model Nissan 340 Z. On the Internet you can find scattered references, photoshopped images and even fake VIN numbers that indicate an intermediate version between the legendary 300ZX and 350Z. However, the reality turns out to be much more prosaic than exciting stories about secret prototypes.
A car with a factory index 340 Z never entered the market or was mass-produced. This name is often used in fan art or is the result of confusion over engine specifications. Understanding the true history of the Z-Series line will help you avoid mistakes when sourcing parts or estimating the value of rare examples.
Historical Context: Generation Gap
After the production of the legendary Nissan 300ZX (body code Z32) in 2000, the company faced a serious crisis. The development of a new generation of sports car was delayed due to the financial difficulties of the concern and the need to create a completely new platform. During this period, there was talk on the sidelines of the auto industry about a possible intermediate step that could keep fans interested.
Many people mistakenly believe that the model 340 Z was released in limited edition to fill this vacuum. In fact, engineers immediately worked on a successor with the Z33 index, which was called 350Z. The transition from a 3.0-liter engine to a 3.5-liter unit was a decisive step that eliminated the need for an intermediate "344" version.
It is important to note that Nissan's marketing strategy at the time was focused on clear positioning. Releasing a model with the number 340 could confuse buyers, as it would break the logical sequence (300, 350, 370). Therefore the name Nissan 340 Z remains only in the realm of rumors and unconfirmed rumors.
- 🚫 Model Nissan 340 Z does not have an official factory body code.
- 📉 The period between 300ZX and 350Z was characterized by the absence of new Z models.
- 🏁 The decision to switch to a 3.5-liter engine was final and irrevocable.
Specifications: Where do the numbers come from?
Rumors about 340 Z often fueled by engine power data. VQ35DE engine installed on 350Z, in early versions produced about 280-290 hp. in some markets, but in tuning or on stands the dynamics could approach the numbers that fans rounded up to “340”. There is also a myth about a turbocharged prototype that supposedly accelerated faster than the standard version.
Some sources indicate the existence of a concept with a 3.4-liter engine. However, Nissan technical documentation confirms that the VQ engine range developed directly from 3.0 to 3.5 liters and then to 3.7 liters. The intermediate volume of 3.4 liters was never considered for mass production under Project Z.
If you see an advertisement for sale Nissan 340 Z, be extremely careful. Most likely, we are talking about a remade 350Z with altered nameplates or a complete fake. Checking the VIN code in official registers will immediately reveal the true history of the car, since the factory has never assigned such an index.
⚠️ Attention: Any offers to purchase a “Nissan 340 Z” without official documents confirming a unique factory modification are highly likely to be a scam.
- 💨 The VQ35DE engine does not have a 3.4 liter version from the factory.
- 🔧 Tuning can give power up to 340 hp, but this does not change the name of the model.
- 📄 Official spare parts catalogs do not contain items for the 340Z model.
Evolution of the Z line: From 300 to 370
Understanding Model Evolution Nissan Z allows you to clearly see why 340 Z couldn't appear. After 300ZX (Z32) the world saw 350Z (Z33), which became a bestseller due to its combination of price and features. Then followed 370Z (Z34) with an increased engine capacity and an updated platform.
Each generation received a clear index corresponding to the engine size in deciliters. 300 is 3.0 liters, 350 is 3.5 liters, 370 is 3.7 liters. The logic here is flawless, and the introduction of a model with the 340 index would break this system, creating confusion in the perception of the brand by customers.
Under development 350Z engineers considered various options for tuning the engine, but settled on 3.5 liters as the optimal balance between power, reliability and cost. Any intermediate solutions were rejected in the early stages of design, making the existence Nissan 340 Z impossible in mass production.
- Yes, that would be cool
- No, the 350Z is already great.
- I don't care
- I would only buy the 300ZX
Common myths and how to check them
Forum and blog owners often create stories about "lost" prototypes that were allegedly destroyed or sold at private auctions. One of the popular myths says that 340 Z was created for racing in the JGTC or DTM series, but did not go into series. However, the archives of racing teams and technical regulations of those years do not contain any mention of such a car.
Another possibility concerns special versions for the American market, where emissions regulations may have required different engine tuning. But even in this case, the model index remained unchanged - 350Z. Only the engine control software maps and exhaust systems were changed.
To check information about the availability of such a model, use official sources. Go to the site Nissan Global or consult the archives Nissan Heritage Collection. If the information is not in official catalogs, then the car did not exist. Don't be fooled by photos on social media, as modern software makes it easy to change your bumper logo.
☑️ Model authentication checklist
Comparison table of real models of the Z line
To finally clarify the situation and see what models actually existed during this period, let’s compare the key characteristics of the main generations. This will help you distinguish real facts from fiction about non-existent Nissan 340 Z.
| Model | Body code | Years of manufacture | Engine | Power (hp) |
|---|---|---|---|---|
| Nissan 300ZX | Z32 | 1989–2000 | VQ30DETT | 280–300 |
| Nissan 350Z | Z33 | 2002–2009 | VQ35DE | 280–306 |
| Nissan 370Z | Z34 | 2009–2020 | VQ37VHR | 332–350 |
| Nissan Z (New) | RZ34 | 2022–present | VR30DDTT | 400 |
As you can see from the table, the transition from 300 to 350 was direct. There is no intermediate link with index 340 or 3.4 liter engine in the official line. Any deviations from these figures are the result of tuning or errors in documentation.
⚠️ Attention: When buying a used car, always check the VIN code with the plate under the hood to make sure that you are not dealing with a conversion for a non-existent model.
Why do some sellers use the name 340 Z?
Sometimes sellers use this name to draw attention to a regular tuned 350Z to create the illusion of rarity and exclusivity of the car.
Tuning and modifications: How to get 340 hp on 350Z
Although the factory model Nissan 340 Z didn't exist, owners 350Z often achieve such power on their own. Engine VQ35DE has a huge margin of safety and lends itself well to tuning. Installing a turbocharger or supercharger makes it easy to reach 340 horsepower and above.
To achieve this goal, it is necessary to replace the standard injectors, install an intercooler and reprogram the engine control unit. This is a complex procedure that requires professional knowledge and equipment.
If you want power close to mythical 340 Z, consider ready-made kits from well-known tuning studios. They provide a balance between power and reliability. However, remember that after such changes the car will remain 350Z according to all technical documents.
- 🔩 Installing a turbine is the most popular way to increase power.
- 💻 Chip tuning is necessary for the correct operation of the engine with new parts.
- 🛡️ Strengthening the transmission is necessary when increasing torque.
Before you start tuning the VQ35DE engine, be sure to check the condition of the timing chain and tensioners - under high loads they wear out faster.
Legal aspects and registration of changes
Making changes to the design of the car, especially those related to the engine and power, requires official registration. If you installed the turbine on 350Z and got 340 hp, you can't change the model name to Nissan 340 Z in documents.
In most countries, the model name is strictly tied to the factory specifications. Trying to register a car as 340Z will be rejected by the registration authorities, since such a model code does not exist in the manufacturer's database. This can lead to problems when passing inspection or selling the car.
When reselling a modified vehicle, be sure to indicate all changes made in the technical documentation. Concealing facts about tuning may lead to voiding the warranty or refusal to pay insurance in the event of an accident. Honesty and transparency are key to safe sports car ownership.
The model name in the documents must always correspond to the factory data, regardless of the actual engine power after tuning.
Conclusion: Reality vs. Fiction
Story about Nissan 340 Z is a vivid example of how fan rumors and fantasies can create a legend that did not exist in reality. Despite the absence of such a model, the spirit of the Nissan sports car lives on for generations 350Z, 370Z and new Nissan Z.
Understanding the history and technical characteristics helps to avoid mistakes when purchasing and operating. If you are looking for a unique sports car, pay attention to real rare versions 350Z or 370Z, and not on non-existent models.
There is always room for myths in the world of cars, but you should only rely on verified facts and official data. This is the only way to maintain your safety and avoid unnecessary expenses.
Interesting fact
In 2003, Nissan did consider a concept with a naturally aspirated 3.5-liter V6 that might have been called something else, but ultimately decided on the 350Z.
Was there a prototype of the Nissan 340 Z?
No, there is no officially registered prototype with that name. All mentions refer to rumors or tuned versions of the 350Z.
Can I buy a Nissan 340 Z at a dealership?
It is impossible to buy such a model, since it was never mass-produced and was not supplied to dealerships.
Why is the 350Z sometimes referred to as 340 hp?
This may be due to the results of measurements on a dyno or to tuned versions where the power is brought to this mark.
How to distinguish a real 350Z from a fake with a 340Z nameplate?
Check the VIN through an authorized dealership or online service. The factory body code for the 350Z is Z33, the 340Z has no code.
Is it worth paying extra for the “rare” Nissan 340 Z?
No, you shouldn’t overpay, as it’s either a scam or a regular 350Z with modified nameplates. The price should be in line with the market value of the 350Z.