Wiseco Sport Compact -9cc Pistons | 2002-2005 Subaru WRX EJ20 (K588M)

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2002-2005 Subaru WRX EJ20 Sport Compact Pistons by Wiseco

Own a 02-05 Subaru WRX EJ20 and plan on building a motor? Wiseco is proven to make some of the best pistons on the market!

Featuring valve pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized. Piston crown shapes designed to promote maximum intake charge efficiency thru scavenging mixture "cross flow" during intake and exhaust valve overlap. More fuel and air equals more horsepower!

Their pistons are designed to optimize squish or quench during compression combustion cycle event, resulting in resistance to detonation and pre-ignition. The end product is longer engine life and increased horsepower potential.

Features

  • 2618 Aerospace Alloy for Superior Strength to Weight Ratio
  • Strutted Forging for Improved Strength

Benefits

  • Resistance to detonation and pre-ignition.
  • Longer engine life and increased horsepower potential.
  • Maximum ring seal minimizes blow-by and oil consumption.

Please Note

  • Most Wiseco Pistons have offset pins. (Pins must be offset, same as OEM, for quietest operation).

Applications

  • 2002 - 2005 Subaru WRX EJ20

Specifications

  • Stroke: 2.952" (75mm)
  • Rod: 5.137" (130.5mm)
  • Comp Ht: 1.286" (32.66mm)
  • Head cc's: 48
  • Volume: -9cc
  • Gasket Thickness: 0.054" (1.37mm)
  • Deck Clearance: 0.014" (0.35mm)
  • Block Ht: 7.913" (201mm)
  • Comp Ratio: 8.2

What's In The Box?

  • 1 - Sport Compact Piston Kit
  • Piston Pins and Rings

Warranty

  • WISECO warrants this product will be free from defects in material and workmanship for thirty (30) days following date of original purchase.

Customer Reviews

Based on 1 review
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Caleb Roggi
Couldnt ask for anything better

These pistons fit perfectly in a 2002 ej205, all pistons were within fractions of a gram of each other. Rings also came sized perfectly for the engine. Overall great product and great, timely shipping from map performance! As for the performance of the engine, we will see how it goes however I dont think these pistons would be the point of failure if something goes wrong.