N55B30 S55B30

 JE's patented Perfect Skirt coating makes piston slap, false knock, and cold-start wear a thing of the past.
For the first time ever, 2618-alloy pistons can be installed with piston-to-wall clearances near that of an OEM piston!

Product detailed specification
Manufacturer: FCP Engineering
Model: FCPRHB144353622
Profile: H-beam
C to C: 144.3mm
Big end diameter: 53.6mm
Pin diameter: 22mm
Quantity: 6 pcs., 12 pcs. ARP2000 3/8" bolts
Made of: forged steel 4340 EN24er
Advertised horsepower rating: 1000HP (6 cylinder)
Advertised RPM rating: 9000RPM
BMW 135i E82/E88, M135i F20, M235i F22/F23, 335i E90/E91/E92/E93, 335i F30/F31, 435i F32/F33/F36, 535i F10/F11, 640i F12/F13, 740i F01, X1 E84, X3 F25, X4 F26, X5 E70, X5 F15, X6 E71, X6 F16, 335 GT F34, 535 GT F07
Fits aftermarket pistons

Product detailed specification
Manufacturer: FCP Engineering
Model: FCPRHB144353622T
Profile: H-beam
C to C: 144.3mm
Big end diameter: 53.6mm
Pin diameter: 22mm (Tapered small end)
Quantity: 6 pcs., 12 pcs. ARP2000 3/8" bolts
Made of: forged steel 4340 EN24er
Advertised horsepower rating: 1000HP (6 cylinder)
Advertised RPM rating: 9000RPM
BMW 135i E82/E88, M135i F20, M235i F22/F23, 335i E90/E91/E92/E93, 335i F30/F31, 435i F32/F33/F36, 535i F10/F11, 640i F12/F13, 740i F01, X1 E84, X3 F25, X4 F26, X5 E70, X5 F15, X6 E71, X6 F16, 335 GT F34, 535 GT F07
Fits OEM pistons

 JE's patented Perfect Skirt coating makes piston slap, false knock, and cold-start wear a thing of the past.
For the first time ever, 2618-alloy pistons can be installed with piston-to-wall clearances near that of an OEM piston!

COMETIC MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required.

Spring data:
Seat pressure - 75lbs @ 36.50mm
Open (lift) pressure - 155lbs @ 10.00mm
Spring coil bind - 23.20mm
Max lift - 12mm
Rate - 8 lbs./mm
Wide end spring outer diameter - 24.40mm
Wide end spring inner diameter - 17.60mm
Narrow end spring outer diameter - 21.00mm
Narrow end spring inner diameter - 14.30mm

Kit includes:
Single springs - 24 pcs. SPR-FE20N54-BE
Rretainers - 12 pcs. RET-BMN54-TI (5mm)
Retainers - 12 pcs. RET-BMN54-TE (6mm)

 JE's patented Perfect Skirt coating makes piston slap, false knock, and cold-start wear a thing of the past.
For the first time ever, 2618-alloy pistons can be installed with piston-to-wall clearances near that of an OEM piston!