Parts by engine

Product detailed specification

Manufacturer: FCP Engineering
Model: FCPRHA15550620-5
Profile: H-beam
C to C: 155mm
Big end diameter: 50.6mm
Pin diameter: 20mm
Quantity: 5 pcs., 10 pcs. ARP2000 3/8" bolts
Made of: forged steel 4340 EN24er
Advertised horsepower rating: 800HP (5 cylinder)
Advertised RPM rating: 9000RPM 
Audi Quattro, 200, S2, RS2, S4, S6 - 2.5 2.6 20V Stroker

Engine setup: 2.5tdi 236mm block with 95.5 crankshaft and standard 2.2 20V Pistons

• Purpose-Built For Boost High Boost and Nitrous Honda K24 Applications
• Forged From Ultra-Strong 4340 Steel
• Patented Three-Pocket Design
• Capable of 1000+ HP
• 3/8 x 1.600 in. ARP 625+ Fasteners
• High Quality APMCO Bronze Pin Bushing
• 26 Point Detailed CMM Inspection Report Includedt
• Forged From Ultra-Strong 4340 Steel
• Patented Three-Pocket Design
• Industry-Leading in. ARP 625+ Fasteners
• Detailed Inspection Report Included

 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!

Springs data:

Seat pressure - 82lbs @ 34.25mm
Open (lift) pressure - 220lbs @ 11.5mm
Spring coil bind - 20.70mm
Rate - 12.10lbs/mm
Max lift - 13.50mm
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm

Set includes:

Dual springs: 16 pcs. SPR-TS1015/SU4
Titanium retainers: 16 pcs. RET-TS60/WRX1
Seats: 16 pcs. SEAT-TS/SUB4

Armor Plated wiseco pistons have almost a bronze colored tint to the top of the piston and the wrist pin bore. Wiseco's Armor Plating is an abrasion resistant plating that raises the hardness of the aluminum, increases the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup and combats corrosion caused by detonation. Wiseco's most popular pistons now include Armor Plating.