*Ships in 1-5 business days.
*Note: All engine internals are non-refundable.
Supertech pistons are manufactured from extruded high silicon, enhanced 4032 alloy that low thermal expansion, excellent wear resistance and higher thermal conductivity. A phosphate dry lubricant coating is applied to pistons to protect against ring micro welding and enhance skirt lubrication.
- Forged from enhanced 4032 alloy and CNC machined
- Contact reduction grooves are standard
- Honed & reamed pin bores and precise fit
- High tensile strength and evenly distributed hardness
- Withstands up to 42psi of turbo boost, w/alcohol, w/out any problems
- A 2 or 3 forging steps process yeilds a fine structural grain oriented in fibers in the same direction of the stresses.
- Wrist pins are constructed or cold extruded chrome molly steel for high strength to be used with the wire clip locks.
- Quality Control is performed after every step of the manufacturing process in climate controlled environments to ensure reliability of dimensions
- Rings, wrist pins, and wire locks are included.
Please refer to this K-series engine application list for part number referencing in the pull-down menu:
- K20A/A2/Z1/Z3 (+.07 w/K20A3 Head)
- K20 - 86.02mm / 9.0cr : P4-HK86-N6
- K20 - 86.02mm / 11.2cr : P4-HK86-P6
- K20 - 86.02mm / 12.0cr : P4-HK86-P11
- K20 - 86mm / 12.5cr : P4-HK86-P15
- K20 - 86.5mm / 9.0cr : P4-HK8650-N6
- K20 - 86.5mm / 11.2cr : P4-HK865-P6
- K20 - 86.5mm / 12.1cr : P4-HK8650-P11
- K20 - 86.5mm / 12.5cr : P4-HK8650-P15
- K20 - 87mm / 11.5cr : P4-HK87-P8
- K20 - 87mm / 12.5cr : P4-HK87-P15
- K24A2 w/K20 Head
- K24A2 - 87mm / 11.5cr : P4-HK87-N0
- K24A2 - 87mm / 12.5cr : P4-HK87-P4
- K24A2 - 87mm / 13.2cr : P4-HK87-P8
- K24A2 - 87.5mm / 12.5cr : P4-HK875-P4
- K24A2 - 88mm / 12.5cr : P4-HK88-P4
- B20 - 86.5mm / 13.5cr : P4-H8650-P8