Supertech Piston Kit | BMW | S52 (11:1 CP) | P6-BM87-N12


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Supertech

Part# P6-BM87-N12

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Supertech Performance P6-BM87-N12 BMW S52 Pistons

Supertech Pistons are manufactured from extruded high silicone, enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low thermal expansion, excellent wear resistance and higher thermal conductivity. Supertech Pistons, with this alloy, have withstood up to 42psi of boost, with alcohol, without any problems.

A two or three step forging process yields a fine structural grain which are then submitted to several machining steps in state of the art CNC machines.

Several heat treatments provide the piston with high tensile strength and evenly distributed hardness.

Contact reduction grooves are standard, and pin bores are honed and reamed for precise fit. Wrist pins are constructed of cold extruded chrome moly steel for high strength and used with wire clip locks.

Finally, the pistons receive a "phosphate dry lubricant’ coating to protect the rings against "micro-welding’ and enhance lubrication on the skirt/cylinder area. Compression ratios are computed with .030" head gasket and .010" deck unless indicated in each case.


Specs:

  • Bore: 87mm (0.60mm Oversized)
  • Stroke: 89.6mm
  • Comp Height: 1.220" (31mm)
  • Compression Ratio: 11:1
  • Dome/Dish Volume CC's: -12
  • Pin Diameter: 22mm (.866")
  • Pin Weight: 74g
  • Piston Weight: 306g
  • Rod Length: 5.315"
  • Skirt Style: Round
Note: For use with Ring Set GNH8700


All Fitments

BMW
Year Model Sub Model Cylinders Liter Aspiration Eng Desg. Fuel Notes
1996-1999 M3 ALL ALL 3.2 ALL S52 ALL
1998-2000 Z3 M COUPE
M ROADSTER
ALL 3.2 ALL S52 ALL





⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


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