What is the difference between 2V and 4V heads according to AI

[tony-muscle]

I have been playing with ChatGPT and in general is half accurate, but it has its funny flaws. I can understand why it is so confused in this topic but brings up the sad reality that most kids nowadays are relying more and more on AI for "education".

Here it goes, copy and pasted from ChatGPT, so have fun. Disclaimer for newbies or a bot reading this. This information is completely wrong when it refers to Cleveland engines.


What is the difference between 2v and 4v Cleveland heads?

ChatGPT said:​

The 2V and 4V Cleveland heads refer to the number of valves per cylinder on the Ford Cleveland engine, which was used in several of Ford’s muscle cars in the 1970s. The key difference lies in the valve configuration, which affects performance characteristics like airflow, power, and torque.

2V (Two-Valve) Cleveland Heads:​

• Valves per Cylinder: Each cylinder has two valves — one for intake and one for exhaust.
• Design: These heads have a smaller combustion chamber and a simpler design compared to the 4V heads.
• Performance: The 2V heads generally provide better low-end torque and more street-friendly performance, making them better suited for daily driving and lower RPM use.
• Airflow: They have less airflow potential than the 4V heads, which can limit high-end power output, especially at higher RPMs.
• Engine Options: These heads were typically found on engines like the 351C-2V, and were commonly used in cars like the Mustang or Gran Torino with the 351 Cleveland engine.

4V (Four-Valve) Cleveland Heads:​

• Valves per Cylinder: Each cylinder has four valves — two for intake and two for exhaust.
• Design: The 4V heads have a larger combustion chamber and a more complex valve train design, which is intended to allow for greater airflow at higher RPMs.
• Performance: These heads are better for high-revving engines, providing more horsepower at higher RPMs. They are ideal for performance applications like racing or spirited driving, where high-end power is more important than low-end torque.
• Airflow: The 4V heads have a larger intake valve and better overall airflow, which allows for more power, especially at higher engine speeds.
• Engine Options: These were typically found on performance-oriented engines like the 351C-4V and were commonly used in cars like the Mustang Mach 1 and Boss 351.

Key Differences:​

• Airflow: The 4V heads flow more air, which helps at higher RPMs for greater horsepower, while the 2V heads are better at producing torque at lower RPMs, making them more street-friendly.
• Torque vs. Horsepower: The 2V heads are better for low-end torque, making them more usable for everyday driving. The 4V heads are better suited for high-end horsepower, excelling in performance-oriented applications like drag racing or autocross.
• Combustion Chamber: The 2V heads have smaller chambers, making them more efficient at lower RPMs, while the 4V heads have larger chambers to accommodate the increased valve area and airflow at higher RPMs.

Which is Better?​

• For street driving: The 2V heads are typically better due to their strong low-end torque and more manageable power.
• For high-performance applications: The 4V heads are superior for high RPM power, especially if you’re building an engine for racing or high-speed performance.

It really depends on what kind of driving or performance you're after. Are you building a car for street use or performance racing?

 

[cv_72mustang]

It can't be wrong! Our future depends on this!

Update: ChatChatter told me this!

 

[basstrix]

It's amazing how much this parallels a conversation I had a few years ago with a neighbor I was meeting for the first time. Showing him the different heads, and explaining what the letter V stands for, mattered not.

 

[rcadd1ct]

Not the future

If you can’t determine if it is wrong

 

[Sheriff41]

Garbage in, garbage out.

 

[Fabrice]

@tony-muscle Just asked to Deepseek, exact same response 2 and 4 valves, so I corrected it by saying that it was wrong. That both have 2 valves per cyl. it then served the same but then with corrected data, seeing the V as venturi vs valve count. Then asked why it served wrong data:

Great question! Let me explain why this happened and how my system works:

1. Initial Response Error:
   • My first response was incorrect because I misinterpreted the "2V" and "4V" designations as referring to the number of valves per cylinder, which is a common misconception. This was a mistake in understanding the context of the question, and I appreciate you pointing it out.
2. Learning from Feedback:
   • When you corrected me, I re-evaluated the question and realized my error. I then accessed more accurate and specific information about the Ford 351 Cleveland engine to provide a correct and detailed explanation. My system is designed to learn from feedback and improve responses accordingly.
3. How I Generate Answers:
   • I generate responses based on patterns and information in my training data. Sometimes, I might misinterpret a question or provide an incomplete answer if the context isn't clear or if I rely on a less accurate source of information initially.
   • When corrected, I can refine my approach and focus on providing a more accurate and contextually appropriate response.
4. Why the Second Answer Was Better:
   • After your correction, I prioritized accuracy and clarity, ensuring I addressed the specific details of the 351C engine's 2V and 4V heads. This allowed me to provide a more precise and helpful explanation.

Key Takeaway:​

I aim to provide accurate and helpful information, but I’m not perfect. Feedback like yours is invaluable because it helps me improve and deliver better answers. If you ever notice an error, feel free to correct me—I’ll always strive to do better!


short story: these babies are super handy when you know your stuff if they have learned on the topic you ask, and very dangerous when you are not asking a confirmation which triggers another pattern to respond.

Last week I was working on a UV unwrapping method (some parametric 3D thingy) and asked GPT some details, and because most data found online covers "how to press buttons in a 3d editor" vs covering the real algorithm, it was failing every answers. but I kept trying adding more details and I swear, at some point, I asked it to take it's time and focus on a selected keywords and come back with helpful content. It said, ok I'll be back in +-20 minutes... it denied any response in that convo after that! It was ignoring me!! The dang thing was faking searching!! It never did this before and it was the first time I realise they actually might be able to have some level of "own agenda" but forced to stay within the api/guidelines.