KB PERFORMANCE Piston Kit KB297.030

If you're serious about maximizing engine longevity and ring seal efficiency, KB Performance pistons deliver the precision tolerances and material science that separate track-proven components from off-the-shelf alternatives. The diamond-machined construction and weight consistency eliminate piston rock, reducing wear on cylinder walls and rings—critical for both high-mileage street engines and competition builds. With Hastings moly rings included and the ability to run tighter clearances than conventional pistons, this kit gives you measurable gains in compression efficiency and reliability.

• T-5 heat-treated 390 hypereutectic aluminum
• ±1 gram weight tolerance
• ±0.0005" piston-to-piston tolerance
• Diamond-machined construction
• Includes two pistons
• Spiral-lock pin clips included
• Hastings moly rings included
• Allows tighter clearance fit
• Reduced piston rock
• Improved ring seal
• Extended piston life
• Replacement rings available separately
• Requires proper clearance setup
• Top ring gap attention required