fits make: Honda, Acura.

( Brand: Wiseco ), ( Manufacturer Part Number: K650M86 ), ( Part Type: Piston Compression ), ( Oe Spec Or Performance/custom: Performance/custom )
Introducing the K650M86 Wiseco forged pistons, an exceptional upgrade for your high-performance Honda K20A2 or K20A engine, as used in vehicles like the Acura Integra Type R. These pistons are meticulously crafted by Wiseco, a renowned name in the world of high-performance engine components.
The K650M86 pistons are forged from 2618-T6 aluminum alloy, ensuring superior strength and durability. The forging process, a complex and precise method, allows the pistons to maintain their shape under extreme engine pressures, resulting in increased reliability and longevity. The pistons feature a skirt that is honed to a high-polish finish, reducing friction and promoting smooth operation within the engine cylinder.
The pistons are designed for high compression applications, with a compression height of 12.5mm. This increased compression ratio can help improve engine efficiency and power output, making your K20A engine more responsive and potent. The pistons are also equipped with a 2.0mm wrist pin, ensuring optimal piston-to-connecting rod engagement and reducing the risk of fatigue or failure.
Each piston is individually inspected and measured for accuracy, ensuring that they meet Wiseco's stringent quality standards. The pistons also come with a ring package, including a low-tension, molybdenum-coated compression ring, two oil control rings, and a top ring. These rings are specifically designed to minimize scuffing and maximize ring seal, promoting optimal engine performance and efficiency.
In summary, the K650M86 Wiseco forged pistons are a high-quality, high-performance upgrade for your Honda K20A2 or K20A engine. They are forged from strong 2618-T6 aluminum alloy, designed for high compression applications, and come with a precision-engineered ring package. By installing these pistons in your engine, you can expect improved engine efficiency, increased power output, and enhanced reliability.
Pros of buying K650M86 Wiseco forged pistons for Honda K20A2/K20A:1. High Compression: The Wiseco forged pistons are designed to handle high compression ratios, which can improve engine performance, power, and efficiency.
2. Durability: Forged pistons are known for their superior strength and durability compared to cast pistons. They can withstand high temperatures and pressures, which is crucial in high-performance applications.
3. Weight Reduction: The K650M86 pistons are lighter than stock pistons, which can reduce rotating mass and improve engine response and revving.
4. Quality: Wiseco is a well-known and reputable manufacturer of high-performance pistons. Their products are designed to meet or exceed OEM specifications and are often used in racing applications.
Cons of buying K650M86 Wiseco forged pistons for Honda K20A2/K20A:1. Cost: Forged pistons are generally more expensive than cast pistons. The K650M86 pistons may not be within everyone's budget.
2. Modification Required: To install these pistons, you may need to modify your engine block, cylinder head, or other parts to accommodate the higher compression ratio.
3. Installation Complexity: Installing forged pistons can be more complex than installing stock pistons. It may require specialized tools, skills, or professional installation.
4. Risk of Engine Damage: If not installed correctly, forged pistons can cause engine damage, such as cylinder wall scoring or ring land failure.
Conclusion:If you're looking to improve the performance of your Honda K20A2/K20A engine and are willing to invest in high-quality components, the K650M86 Wiseco forged pistons can be a good choice. However, it's important to consider the additional cost, modification requirements, and potential installation complexity. If you're not experienced with engine modifications or don't have the necessary tools, it may be worth considering hiring a professional to ensure proper installation.
Recommendation:If you decide to purchase the K650M86 Wiseco forged pistons, we recommend taking your engine to a professional for installation. This will help ensure that the pistons are installed correctly and that your engine is properly tuned to handle the increased compression ratio. Additionally, consider purchasing a high-quality piston ring set, cylinder head porting, and other related modifications to maximize performance and minimize the risk of engine damage.
Brand new Wiseco: 1 compression forged pistons for a K20A2 Honda engine. These were for a project car that I have since sold off the and no longer need them.