Keith Black Pistons Dome Top Pistons KB266.010 for Big Twin 1984-1999
$597.31
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Keith Black Pistons Dome Top Pistons KB266.010 for Big Twin 1984-1999
$597.31
Constructed from a premium hypereutectic alloy with 16% silicon content, these Keith Black dome top pistons provide exceptional strength and durability for air-cooled engines. The low thermal expansion rate allows for tighter piston-to-cylinder clearances, maximizing engine performance and efficiency.
Designed to deliver a 10.5:1 compression ratio with an 80cc combustion chamber, this complete kit includes pistons, rings, wrist pins, and clips for a seamless rebuild.
Key Features
| Brand | Keith Black Pistons |
| Manufacturer Part Number (MPN) | KB266.010 |
| Bore Size | 89.1 mm |
| Stroke | 108 mm |
| Compression Ratio | 10.5:1 (with 80cc chamber) |
| Material | Hypereutectic Alloy (16% Silicon) |
| Piston Top Style | Dome Top |
| Engine Compatibility | Evolution (Evo) |
| Vehicle Fitment | Big Twin 1984-1999 |
| Weight | 1.8 kg |
Highlights
- Cast hypereutectic alloy with 16% silicon content for high strength and durability.
- Low thermal expansion rate allows for tighter piston-to-cylinder operating clearances.
- Engineered specifically for high-demand air-cooled motorcycle engines.
- Achieves a 10.5:1 compression ratio when paired with standard 80cc cylinder heads.
Compatibility
Compatible with Big Twin models from 1984 to 1999 fitted with an Evolution (Evo) engine.
What's included
- 2 x Keith Black Hypereutectic Dome Top Pistons
- 1 x Piston Ring Set
- 2 x Wrist Pins
- 4 x Piston Pin Clips
Downloads
Frequently asked questions
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