fits model: Mxz, 800, Rev. make: Ski-doo. year: 2003.

( Brand: Spi ), ( Manufacturer Part Number: 03S800BMTEK ), ( Part Type: Bearing Gasket Piston ), ( Piston Type: Cast, Single Ring )
The 2003 Ski-Doo MXZ 800 Blair Morgan SPX Piston Bearing Kit, with part number 03S800BMTEK, is an essential upgrade for avid snowmobilers seeking top-tier performance and durability from their 800cc engine. This premium piston kit, designed by Blair Morgan, an industry expert known for his extensive knowledge and expertise in high-performance snowmobile engines, is specifically engineered for the Ski-Doo MXZ 800 model.
This kit includes not only the pistons but also the necessary bearings and gaskets required for a complete engine overhaul. By utilizing this comprehensive solution, snowmobilers can ensure that all critical components are replaced simultaneously, ultimately increasing engine longevity, efficiency, and power output.
The pistons in this kit possess various performance enhancements that cater to the demands of the 800cc engine. They boast improved ring grip, reduced friction, and enhanced strength, ensuring a better seal between the piston and cylinder wall to minimize blow-by gases and optimize combustion efficiency. As the bore size of these pistons measures 82mm, they effectively match the earlier 800RRE engines, making them an ideal choice for those upgrading from an older model or desiring a more powerful setup for their MXZ 800.
Additionally, the pistons' high-quality steel construction guarantees excellent durability and resistance to heat, ultimately translating to a longer service life and superior reliability on the snow.
The included bearings evince Blair Morgan's commitment to engineering excellence, as they are crafted from durable materials and manufactured to exacting tolerances. These state-of-the-art bearings decrease unpleasant vibrations and unwanted noise, enabling a smoother, quieter, and more enjoyable riding experience. Furthermore, they reliably protect the crankshaft and connecting rod from wear and tear during rigorous use.
Lastly, the gaskets in this kit attend to the sealing of various engine areas, such as the oil and coolant passages. By using high-grade, OEM-compatible materials, these gaskets securely hold engines together, preventing unwanted leaks and ensuring the engine's optimal performance.
The 2003 Ski-Doo MXZ 800 Blair Morgan SPX Piston Bearing Kit (03S800BMTEK, 82mm) is a worthwhile investment for snowmobilers seeking significant performance upgrades and prolonged engine life for their MXZ 800. With an unwavering dedication to quality and precision, this exceptional piston kit will undoubtedly provide unmatched reliability and enjoyment throughout countless snowy adventures.
The 03S800BMTEK Ski-Doo MXZ 800 Blair Morgan SPI Pistons, Bearings, and Gasket Kit (82mm) is a popular aftermarket upgrade for the Ski-Doo MXZ 800 snowmobile model. This kit includes new pistons, bearings, and gaskets for the engine cylinder. In this analysis, let's discuss the advantages and disadvantages of purchasing this component upgrade to help you make an informed decision.
II. Pros1. Performance improvement: The Blair Morgan pistons are known to deliver better compression ratio and power output. Upgrading to these pistons can lead to increased engine performance and more responsive acceleration.
2. Durability: The piston kit includes upgraded parts that are designed to last longer than stock components. These parts are also Made in the USA, ensuring high-quality materials and craftsmanship.
3. Improved fit and finish: Customers report a better fit and finish when installing the Blair Morgan pistons and accompanying components. This can lead to increased reliability and a smoother running engine.
4. Warranty coverage: The kit includes a 12-month limited warranty, offering peace of mind and protection against manufacturing defects.
5. Compatibility: This kit is specifically designed for the Ski-Doo MXZ 800 82mm engine, ensuring a perfect fit and function for the snowmobile.
III. Cons1. Cost: The piston kit is generally more expensive than the stock components or other aftermarket alternatives. Although the longevity and performance improvements may justify the cost, it may not be within everyone's budget.
2. Installation complexity: Installing the pistons, bearings, and gaskets requires advanced mechanical skills and knowledge. If you are not confident in your abilities, it may be wise to consult a professional mechanic.
3. Time investment: The installation process for this kit can be time-consuming, taking several hours to complete. It is important to factor in this time commitment before making the decision to purchase.
4. Potential engine break-in: After installing the new pistons, bearing, and gaskets, the engine may require a break-in period to ensure optimal performance and longevity. Following a proper engine break-in procedure is essential to prevent potential damage and ensure the engine runs smoothly.
IV. ConclusionThe 03S800BMTEK Ski-Doo MXZ 800 Blair Morgan SPI Pistons, Bearings, and Gasket Kit (82mm) offers several advantages, including improved performance, durability, and compatibility. However, the higher cost, installation complexity, and time commitment must also be considered. Ultimately, the decision to buy this kit depends on your mechanical abilities, budget, and desired performance gains for your Ski-Doo MXZ 800 snowmobile.
If you are primarily concerned with improving your snowmobile's performance and are willing to invest the time and money, the Blair Morgan piston kit is an excellent choice. However, if you are on a tight budget or lack the necessary mechanical skills, alternative options might be more suitable for your needs. Carefully weigh the pros and cons before making your final decision.
Recommendation: If you have the mechanical skills, confidence, and budget to install and maintain this piston kit, it can significantly enhance the performance and longevity of your Ski-Doo MXZ 800 engine. If you are uncertain about the installation process or prefer a more budget-friendly option, consider consulting a professional mechanic or researching alternative upgrades.
Spi pistons feature the following: high-silicon content hyper eutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing. Mos2 Teflon molybdenum coated skirts perform at the highest standards, reducing friction and heat for added power longevity. Brand new top end rebuild kit. Pistons are for the standard bore 82mm.
Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy. Includes 2 Spi pistons, rings, wrist pins, cir clips, pin needle bearings, and a top end gasket kit. Hard anodized crowns are 75 stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon molybdenum coated skirts.