fits model: Wrx. make: Subaru.

( Brand: Manley Performance ), ( Manufacturer Part Number: 632702C-4 ), ( Part Type: Piston ), ( Engine Codes: Fa20dit )
The 632702C-4 Manley Forged Pistons are a high-performance upgrade for your 2008-2014 Subaru WRX FA20DI-S engine. These pistons are specifically designed for Subaru's 2.0L direct-injection boxer engine, providing increased power and reliability.
Manley is renowned for its precision in forging pistons, and these 632702C-4 pistons are no exception. Made from forged 2618 alloy, they offer superior strength and durability compared to cast pistons. The piston skirts are honed to a mirror finish, ensuring a perfect fit in the cylinder bore and minimizing friction, while the crowns are optimized for combustion efficiency.
The 86.25mm bore size of these pistons is a significant upgrade from the stock 86mm, allowing for increased displacement to 13cc per cylinder. This increase in displacement results in more power and torque, making your Subaru WRX a more potent performer.
The pistons feature a 10.0:1 compression ratio, which is higher than the stock 9.5:1. This higher compression ratio allows for more efficient combustion, resulting in more power and potentially improved fuel economy. However, it's important to note that a higher compression ratio requires higher octane fuel and may require additional modifications to your engine, such as ported and polished cylinder heads, a performance camshaft, and upgraded fuel injectors.
The 632702C-4 Manley Forged Pistons also feature a second ring land, which helps to distribute ring pressure evenly around the piston skirt, reducing ring groove wear and improving engine longevity. The piston pin is made from 4340 chrome molybdenum steel and features a full-floating design for improved durability and reduced friction.
The 632702C-4 Manley Forged Pistons are a significant upgrade for Subaru WRX FA20DI-S engine enthusiasts looking to increase power and reliability. However, it's important to note that these are high-performance pistons and should be installed by a professional mechanic with experience in high-performance engine builds.
Pros of buying 632702C-4 Manley Forged Pistons (86.25mm, 13cc, 10.0 Subaru WRX FA20DIT Performance):1. Enhanced engine performance: These forged pistons are designed to handle increased power and torque, which can lead to improved acceleration and overall performance of your Subaru WRX FA20DIT engine.
2. Durability: Forged pistons are more robust than their cast counterparts. They are less prone to deformation, warping, and failure under high engine loads, providing better reliability and longevity.
3. Heat resistance: Forged pistons have better heat conductivity, allowing them to dissipate heat more efficiently. This can help prevent engine knocking and pre-ignition, ensuring smoother and more consistent operation.
4. Weight reduction: The use of forged pistons in place of cast pistons can result in a weight reduction, which can help improve engine response and fuel efficiency.
Cons of buying 632702C-4 Manley Forged Pistons (86.25mm, 13cc, 10.0 Subaru WRX FA20DIT Performance):1. Cost: Forged pistons are generally more expensive than cast pistons. The cost difference can be substantial, especially for high-quality brands like Manley.
2. Complex installation: Installing forged pistons requires specialized tools and knowledge. It is not a job that can be handled by an untrained or inexperienced mechanic.
3. Engine tuning: To fully utilize the performance potential of forged pistons, further engine modifications may be required, such as upgraded camshafts, intake and exhaust systems, and fuel mapping.
Recommendation:If you are looking to significantly improve the performance of your Subaru WRX FA20DIT engine and are willing to invest in high-quality components, then the 632702C-4 Manley Forged Pistons (86.25mm, 13cc, 10.0) are a worthwhile consideration. However, it is important to weigh the pros and cons, as well as the associated costs, to ensure that this is the right upgrade for your specific needs and budget. If you are unsure about the installation process or have any other concerns, it is recommended to consult with a professional mechanic or engine builder before making a purchase.
25mm 13cc 10. 25mm material: 2618 bore size: for mildly boosted.
0:1 fits Subaru Wrx FA20DIT 632702C-4 includes premium chrome Molly wrist pin and round wire locks.
Recommended clearance.
Offset wrist pin design is utilized for quiet start-ups. 150 wall premium chrome Molly pin standard series included P/N pressure balance groove will accommodate 1mm valve sizes steel top rings with Napier seconds and round wire locks recommended piston clearance. Set of 4 pistons with rings null note: includes premium chrome Molly wrist pin and round wire locks.
25mm standard pin included: 42251 manufacturer product specifications Manley pistons are machined of high strength 2618 material.
292 rod length : 5.
Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique one texturing manufacturing method that assures maximum horsepower.
All pistons come with Molly coated skirts and will accommodate 1mm valve sizes.