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Subaru Forged Piston and Rod Combo with Bearings


Wiseco – Sport Compact – K598M995AP – Subaru – Piston and Ring Kits

Wiseco Sport Compact Series modern day 4 & 6 cylinder High Performance Pistons have strutted forging for improved strength.  Made with a  2618 aerospace alloy for superior strength to weight ratio.  Wiseco  Sport Compact Series High Performance Pistons have the Wiseco ArmorGlide Skirt Coating, which increases power and reduces piston rock to ensure the performance and reliability that you demand from your engine.

These Wiseco Sport Compact Series High Performance Piston Kits crown thickness and ring lands are designed for power-adders like turbos, blowers and nitrous oxide.

The Wiseco Sport Compact Series High Performance Piston Kit comes complete with high-quality Wiseco piston rings. Whether you’re on or off the street, choose Wiseco Sport Compact Series High Performance Piston Kit that’s recommended for your sport compact vehicle and engine application.

  • Brand: Wiseco
  • Manufacturer’s Part Number: K598M995AP
  • Category: Piston and Ring Kits
  • Product Type: Wiseco Sport Compact Series
  • Fitment: Subaru EJ257 / EJ255 2.5L
  • Bore Size (mm): 99.50
  • Bore Size (in): 3.917
  • Oversize: STD
  • Stroke (mm): 79
  • Rod Length (mm): 130.5
  • Rod Length (in): 5.137
  • Compression Height (mm): 30.7
  • Compression Height (in): 1.209
  • Compression Ratio 51cc Head: 9.0
  • Piston Head Volume (cc): -19cc
  • Gasket Thickness (mm): .5
  • Deck Clearance (mm): .30
  • Block Height (mm): 201
  • Pin Part Included: S805 23mm – .905 x 2.500
  • Ring Set Included: 9950VF
  • Average Weight: 379
  • Footnote: 1
  • Quantity: Sold as a kit.

Footnotes: 1 – Most Wiseco Pistons have offset pins. (Pins must be offset, same as OEM, for quietest operation).