Supertech K-Series K24/K20 87mm 12.5:1 Pistons Part Number: P4-HK87-P4

Original price was: $382.00.Current price is: $98.99.

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Supertech 87mm Bore 12.5:1 Compression Pistons for Acura/Honda K-Series K20/K24 Hybrid Engines

Manufactured from extruded high silicon, enhanced 4032 alloy (with additional Cu, Ni & Mg) that has low thermal expansion and features excellent wear resistance.
Withstood up to 42psi of turbo boost with alcohol, without any problems.
2 or 3 step forging process that yields a fine structural grain orienting the fibers in the same direction of the stress.
Several heat treatments for an evenly distributed hardness and extremely high tensile strength.
Goes through several machining steps specifically designed to ensure dimensional precision, perpendicularity and flatness of the ring grooves.
Reduction grooves
Honed and reamed pin bores for the most precise fit
Wrist pins are constructed of cold extruded chrome moly steel for high strength to be used with wire clip locks
Rings are not included – requires Supertech 87mm Piston Rings (GNH8700)