fits model: Std, Wrx, Sti. year: 2004.

( Brand: Manley ), ( Manufacturer Part Number: 622000C-4 ), ( Part Type: Piston ), ( Bore Size: 99.5 ), ( Over Size: Std ), ( Rod Length: 5.137 ), ( Compression Distance: 1.13 ), ( Dome Volume: 26 ), ( Compression Ratio: 8.5 ), ( Piston Weight: 379 ), ( Piston Type: Dish )
The 622000C-4 Manley 83mm Stroker Pistons are a high-performance upgrade for your 2004 Subaru WRX STI with the EJ257 engine. These pistons are designed to increase power and torque, making them an excellent choice for enthusiasts looking to enhance their vehicle's performance.
The 622000C-4 Manley pistons are specifically designed for 83mm stroker engines, which provides an increased displacement compared to the standard 82mm pistons. The piston diameter is 83mm, and they have a standard 99.5mm piston height. The pistons also feature an 8.5 dish for improved combustion and power delivery.
Manley pistons are known for their precision manufacturing and high-quality materials. These pistons are made from forged 2618 alloy, which provides excellent strength and durability. The pistons also have a high-silicon skirt to minimize friction and promote long-term engine life.
The 622000C-4 Manley pistons also feature a full-floating wrist pin and a two-piece oil ring system. The full-floating wrist pin reduces friction and provides better ring sealing, while the two-piece oil ring system ensures proper ring gap and improves oil control.
The pistons also come with a 1.2mm top ring and a 0.6mm second ring, which are designed to provide excellent oil control and ring seal. The pistons also have a 0.5mm oil control ring, which helps to prevent oil from entering the combustion chamber.
The 622000C-4 Manley pistons are a high-performance upgrade for your 2004 Subaru WRX STI with the EJ257 engine. They are designed to increase power and torque, and are made from high-quality materials for durability and reliability. With their full-floating wrist pin, two-piece oil ring system, and precision manufacturing, these pistons are a great choice for enthusiasts looking to take their engine to the next level.
Pros of buying a 622000c-4 Manley 83mm stroker pistons for a 04 WRX STI EJ257:1. Increased displacement: The Manley pistons have a stroke length of 99.5mm, which is an increase from the standard 92mm stroke. This results in more engine displacement, allowing for more power and torque.
2. High-quality materials: Manley pistons are made from high-grade aluminum alloy and use top-of-the-line ring materials. This means they are durable and can handle high power levels.
3. Improved performance: The increased displacement and high-quality materials of the Manley pistons can lead to improved engine performance, including better acceleration, higher top speed, and increased horsepower and torque.
Cons of buying a 622000c-4 Manley 83mm stroker pistons for a 04 WRX STI EJ257:1. Expense: The Manley pistons are more expensive than OEM pistons. This can be a significant investment for some people.
2. Compatibility issues: The Manley pistons may not be compatible with all aftermarket parts or modifications. It's important to ensure that they will work with any other upgrades you plan on making to your engine.
3. Installation complexity: Installing the Manley pistons can be a complex process and may require specialized tools and knowledge. It's recommended to have the installation done by a professional to ensure it's done correctly.
Conclusion:If you're looking to increase the power and performance of your 04 WRX STI EJ257, the 622000c-4 Manley 83mm stroker pistons can be a great option. They offer improved durability, increased displacement, and the potential for better engine performance. However, they are more expensive than OEM pistons and may require specialized tools and knowledge for installation. It's important to weigh the pros and cons and ensure that they are a good fit for your budget and needs before making a purchase.
Recommendation:If you're considering purchasing the 622000c-4 Manley 83mm stroker pistons, we recommend doing your research and consulting with a professional to ensure that they are a good fit for your specific engine setup. Additionally, be prepared for the increased cost and potential complexity of installation. If you're willing to invest in the pistons and have the necessary resources for installation, they can be a great way to improve the performance of your 04 WRX STI EJ257.
5mm Std bore 8. 5:1 dish piston set with rings. 5:1 dish piston set with rings Manley 04 Subaru Wrx Sti EJ257 83mm stroker 99.