The Wizard Forged Race Piston Kits are designed for Mercury Racing 2.5-liter two-stroke outboards operating in high-RPM racing and performance environments.
Engineered as direct replacements for Mercury Racing piston assemblies, these kits fit many of Mercury's most successful performance platforms, including the 260 EFI, 280 ROS, 300 Drag, Formula 1, and S3000 engines.
Built specifically for competitive racing, each piston is forged, top-pinned, angle-cut, lightened, balanced, and performance-coated to reduce friction, improve durability, and minimize reciprocating weight. The result is quicker engine acceleration, improved throttle response, and increased reliability under extreme operating conditions.
Designed for High-Performance Two-Strokes
At elevated RPM, piston weight, ring stability, and friction become critical. Wizard pistons utilize a lightweight single-ring design that reduces frictional losses while maintaining excellent ring control and sealing characteristics.
The pistons feature top-located ring pins, a proven design for high-performance two-stroke engines where ring stability and port timing accuracy are essential. This configuration helps maintain consistent ring location during prolonged high-RPM operation and aggressive acceleration.
For Nikasil-plated cylinders, premium gold single rings are available. For steel-sleeved engines, chrome-faced single rings provide proper compatibility and long service life.
Complete Six-Cylinder Kit
Each Wizard kit includes six forged pistons, six single rings, six lightweight wrist pins, and twelve circlips. Every component is engineered to work together as a complete six-cylinder package, simplifying assembly while reducing overall reciprocating mass.
Fits Nikasil and Steel-Sleeve Engines
Wizard piston kits are available for both Nikasil-plated aluminum cylinders and steel-sleeved Mercury 2.5-liter blocks. This flexibility allows builders to select the proper ring package for their specific engine combination while maintaining the benefits of the lightweight forged piston design.
Mercury Racing Fitment
These piston kits are commonly used in Mercury Racing 260 EFI, 280 ROS, 300 Drag, Formula 1, S3000, 245 Carb, Bridgeport 2.5, offshore racing engines, drag motors, lake-race builds, and other high-performance Mercury V6 applications.
Because many Mercury Racing engines have been modified over the years, final bore size and cylinder configuration should always be verified before ordering.
Cross-Reference Part Numbers
Wizard Forged Race Pistons are designed as direct replacements for Mercury Racing part numbers 848200A12, 840663A12, 848201A12, 827352-8, 827353T20, 827353T9, 827352-6, 827353-6, 827353-8, 827352T20, 827352T9, 827352A13, and 827353A13.
The Wizard Forged Race Piston Kits deliver modern piston technology for Mercury Racing's legendary 2.5-liter platform. With lightweight forged construction, reduced reciprocating mass, top-pinned rings, and compatibility with both Nikasil and steel-sleeve engines, these kits are built for racers and performance enthusiasts who demand maximum performance and reliability from their Mercury Racing powerheads.
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for techincal support.