Which Is Better? Flat Top Vs Dished Pistons

There are two main types of piston designs – flat top and dish. Flat top pistons are mostly used in high performance engines where dish pistons are used in lower power applications. The biggest difference between the two is that flat top pistons have a smaller combustion chamber which helps to increase the compression ratio.

This can lead to more power but also increases the risk of engine knock. Dish pistons have a larger combustion chamber which reduces the compression ratio and can help to prevent engine knock.

When it comes to pistons, there are two main types: flat top and dished. Each has its own advantages and disadvantages, so it’s important to choose the right one for your engine. Flat top pistons are more common in high-performance applications because they offer a higher compression ratio.

This means that more air and fuel can be crammed into the cylinders,
resulting in more power. However, flat top pistons also require stronger connecting rods to handle the extra stress. Dished pistons, on the other hand, are better suited for lower-rpm engines.

They don’t provide as much compression,
but they’re less likely to break under stress. That makes them a good choice for everyday drivers who don’t push their cars to the limit. So which type of piston is right for you?

It all depends on how you plan to use your car.

If you’re looking for maximum performance, go with a flat top piston. But if you just want a reliable engine that won’t let you down, stick with a dished piston.

Flat Top Or Dished Pistons for Boost?

When choosing between flat top or dished pistons for boost, there are several factors to consider. First, what is your application? If you are using a turbocharger or supercharger with high manifold pressures, then a flat top piston is likely the better choice.

The increased surface area will help to prevent pre-ignition and “knocking” from occurring. However, if you are using a Roots-type blower with lower manifold pressures, then a dished piston may be the way to go. The dish in the piston helps to increase the compression ratio, which can be helpful in making more power.

Additionally, some people believe that dished pistons can help reduce ” detonation” or “pinging” under high load/rpm conditions.

Ultimately, it comes down to personal preference and what works best for your particular setup. There is no right or wrong answer when it comes to choosing between flat top or dished pistons – it’s all about experimentation and finding what works best for you and your car!

What’S Better Flat Top Or Dish Pistons?

There are a few different schools of thought when it comes to choosing between flat top and dish pistons for your engine. Some people believe that flat top pistons are better because they offer more compression, while others prefer dish pistons because they offer less compression and more airflow into the cylinders.

Ultimately, it comes down to personal preference and what you want to get out of your engine.

If you’re looking for more power, then flat top pistons may be the way to go. However, if you’re looking for better fuel economy or less engine noise, then dish pistons may be a better option.

What are Dished Pistons Good For?

There are many reasons to choose dished pistons for your engine. One reason is that they can help reduce the overall weight of the engine. This can be beneficial if you are looking to increase performance or fuel economy.

Another reason is that they can help improve the compression ratio of the engine, which can lead to more power and efficiency.

Additionally, dished pistons can help increase the life of your engine by reducing wear and tear on the piston rings and cylinders.

Do Dished Pistons Make More Power?

Dished pistons have been used in high performance and racing engines for many years. The dish in the piston creates a void that allows the combustion chamber to be moved closer to the piston dome. This reduces the volume of the combustion chamber and increases compression ratio.

The increased compression ratio can lead to more power being produced by the engine. Dished pistons are not without their drawbacks though. The dish itself can weaken the piston and make it more susceptible to breakage.

Additionally, dished pistons can cause problems with oil control as oil can pool in the dish area and cause excessive oil consumption or smoking from the engine.

How Much Compression Does Flat Top Pistons Add?

Most flat top pistons will add about 3/4 to 1 full inch of compression. This added compression can help increase power and performance in your engine, but it also means that your engine will be working harder and running hotter. It is important to consider this when choosing a flat top piston for your engine.

You may need to make some other modifications to accommodate the increased compression, such as changing your spark plugs or upgrading your cooling system.


When it comes to choosing between flat top and dished pistons for your engine, there are a few things to consider. One is the desired compression ratio. A higher compression ratio will require a smaller dome in the piston, which can be achieved with a flat top piston.

If you’re not planning on running a high compression ratio, then a dished piston may be a better option since they tend to be cheaper. Another thing to keep in mind is the purpose of the engine. If you’re building an all-out race engine, then you’ll probably want to go with flat top pistons so you can get the most power possible.

However, if you’re just looking for something that will get your car from point A to point B, then dished pistons may be fine since they don’t offer any real performance benefits over flat tops. So, which one should you choose? It really depends on your specific needs and goals for the engine.

If you’re unsure,
it’s always best to consult with an experienced professional who can help you make the best decision for your particular application.

Danyl Dmitry

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