KB PERFORMANCE Piston Kit KB258.005

If you're building a high-performance engine that demands precision and reliability, KB Performance pistons are engineered to deliver tighter tolerances and superior ring seal compared to standard alternatives. The T-5 hypereutectic aluminum construction withstands extreme combustion pressures while the diamond-machined finish ensures consistent weight distribution across your piston set. You'll see measurable gains in ring seal efficiency, reduced piston rock, and extended component life—critical advantages whether you're chasing lap times or pushing power levels.

• Material: T-5 hypereutectic aluminum
• Weight tolerance: ±1 gram
• Dimensional tolerance: ±0.0005"
• Finish: Diamond-machined
• Kit contents: Two pistons
• Included: Piston pins
• Included: Spiral-lock pin clips
• Included: Hastings moly rings
• Installation: Requires precise clearance setup
• Ring gap: Requires special attention
• Advantage: Allows tighter piston fit
• Benefit: Minimized piston rock
• Benefit: Improved ring seal
• Ring/pin replacements: Available separately
• MPN: KB258.005