KB PERFORMANCE Piston Kit - XL KB292.010

If you're building a high-compression engine or pushing your current setup closer to the limit, piston quality separates the engines that last from those that fail. KB Performance pistons are engineered to tighter tolerances than standard alternatives, reducing piston rock, improving ring seal, and extending component life under sustained high-RPM conditions. This kit gives you the precision fit that serious racers and dedicated builders expect.

The KB292.010 combines advanced 390 hypereutectic aluminum alloy with diamond-machining processes that hold weight variance to within one gram and dimensional tolerance to half a thousandth of an inch. That precision translates to consistent combustion pressure, reduced noise, and reliable performance whether you're on the dyno or at the track.

• T-5 heat-treated aluminum alloy
• Diamond-machined to ±1 gram weight
• ±0.0005" dimensional tolerance
• Two pistons per kit
• Includes pins, spiral-lock clips
• Hastings moly rings included
• Bolt-on installation
• Tighter fit than standard pistons
• Reduced piston rock
• Enhanced ring seal performance
• Extended piston ring life
• Requires tight clearance setup
• Special top ring end gap attention required
• Rings and clips sold separately available
• Professional installation recommended