Vertex VTKTC23444C Forged Replica Top End Piston Kit - Standard Bore 77.97mm, 13.5:1 High Compression electrical-gauges-components-speedometer 2001-2002 Harley Davidson FLSTSI Heritage

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Vertex VTKTC23444C Forged Replica Top End Piston Kit - Standard Bore 77.97mm, 13.5:1 High Compression electrical-gauges-components-speedometer 2001-2002 Harley Davidson FLSTSI HeritageBore: 77. 97mm Compression: 13. 5: 1 High Compression Sizing: Standard Bore All pistons are heat treated with a T 5 hardening and tempering cycle. All piston skirts are coated with a high tech molybdenum disulphite coating for faster break in time and increased piston life. Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston. Forged pistons are forged from