Buckshot Racing #77 offers 17 different Mercury 2.5 Liter ported sleeve options for performance, race, and restoration builds using the classic Mercury 2.5L 2-stroke V6 outboard platform.
Our lineup covers 200 HP, 225 HP, 240 HP, 245 HP, 260 HP, 280 HP, and 300 HP-style port configurations, giving builders more flexibility to match the sleeve to the intended power level and current block condition.
200 to 300 HP Port Conversion Options
We offer sleeves for 200-to-260 HP, 200-to-280 HP, and 200-to-300 HP conversions, along with several additional configurations shown in our 17-option chart.
One of the newest additions is our Drag / F1 / S3000 steel sleeve, with the ports cut to 300 HP specifications for 1991–2005 Mercury 2.5 Liter 2-stroke V6 blocks.
These options give engine builders a better starting point for high-performance builds without relying on one generic sleeve for every application.
Steel, Aluminum & Nikasil Sleeve Choices
Buckshot Racing #77 offers steel sleeves, aluminum sleeves, and Nikasil-plated aluminum sleeve options for selected Mercury 2.5 applications.
Our Nikasil aluminum sleeves are supplied ready for installation and final diamond honing.
Sleeves are available in standard bore and plus sizes, with outside-diameter options to help match the condition of the existing block. This is especially important on engines that have already been repaired, sleeved, damaged, or bored oversize.
For best results, the block condition, sleeve OD, final bore size, piston clearance, and honing process should all be confirmed before installation.
17 Mercury 2.5 Sleeve Configurations
Our chart covers applications including: 200 HP Fishing, 225 Pro Max, 245 Race Spec, 260 HP, 280 HP, 300 HP, SST-200 Race Spec, steel sleeve conversions, aluminum sleeve conversions, and Nikasil aluminum sleeve configurations.
The chart separates the sleeves into SS, AL, and AN series to make selection easier.
Whether you are repairing one damaged cylinder or building a complete Mercury Racing powerhead, the goal is to provide a sleeve that better matches the final engine combination.
Built for Mercury 2.5 Performance
The Mercury 2.5 Liter V6 remains a popular platform for drag racing, Formula racing, lake racing, performance boating, restorations, and custom high-performance builds.
As original components become harder to source, quality replacement and performance sleeves are becoming increasingly important. Buckshot Racing #77 continues to expand its Mercury 2.5 product line to help keep these engines running and competitive.
Typical production time is 1–5 weeks, depending on the sleeve configuration and current production demand.
Review our 17-option Mercury 2.5 Liter Ported Sleeve Chart and contact Buckshot Racing #77 with your block type, bore condition, desired horsepower level, and sleeve configuration before ordering.
Please call Mike Hill at 714-697-1716 with any questions about the right sleeve for your black or gold block.