The Buckshot Racing #77 Forged F1 / Drag (Dual Ring) Piston Kits are a next-generation solution engineered for Mercury Racing 2.5L V6 Outboards, delivering uncompromising performance in high-output marine race engines.
 
Now available in limited quantities, these precision-built piston kits are a direct upgrade for factory components found in Mercury’s premier racing powerheads — including the 260 HP EFI, 280 ROS (Offshore), 300 Drag, S3000, and F1 tunnel boat series motors.
 
These pistons are designed to replace OEM units while offering significantly enhanced durability, reduced reciprocating mass, and improved thermal efficiency, especially under the extreme RPM demands of closed-course and drag racing applications.
 
Each Buckshot #77 piston is forged from aerospace-grade aluminum alloy, featuring a top-pinned, dual gold ring design, with race-cut crown geometry optimized for high compression and flame travel.
 
The pistons are CNC-lightened and dynamically balanced, and receive a race-proven skirt and dome coating that reduces friction, minimizes scuffing, and enhances heat resistance. The included shortened, lightened wrist pins further reduce rotating mass, while top locator pins ensure consistent ring sealing at high RPMs.
 
These pistons are fully compatible with standard Nikasil-plated cylinder bores, making them ideal for stock or lightly modified Mercury Racing blocks.
 
The complete kit includes six (6) full piston assemblies — each with dual gold piston rings, coated forged pistons, shortened wrist pins, and high-retention circlips — all meticulously packaged for a precise drop-in fit.
 
At a performance-to-price value of just $1,995, this offering significantly undercuts OEM market prices, which currently average around $2,850 for comparable Mercury factory pistons.
 
For those running steel sleeve cylinder blocks, dual chrome-faced ring options are also available, offering superior longevity and sealing against the steel surface. Additionally, Buckshot Racing offers single ring piston configurations in both gold and chrome finishes, depending on the specific racing application.
 
Whether you're restoring or building a 2.5L Mercury V6 race engine, we also provide Nikasil replacement sleeves and steel sleeve conversions for full compatibility and rebuild versatility.
 
The Buckshot Racing #77 piston kits are compatably with and or direct-fit replacements for a wide array of OEM Mercury Racing piston part numbers, including: 848200A12, 840663A12, 848201A12, 827352-8, 827353T20, 827353T9, 827352-6, 827353-6, 8273538, 827352T20, 827352T9, 827352A13, 827353A13, 2717-827352-8.
 
Engineered for peak performance in Mercury 2.5L high-performance outboards, these kits represent a leap forward in piston technology for marine racing.
 
Whether you're building a championship F1 outboard or dialing in your 300 Drag powerhead for the strip, the Buckshot Racing #77 kits deliver the strength, precision, and reliability demanded at the highest levels of competition.
 
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for techincal support.