• Wiseco piston set for 1988 - Up Evolution Sportster
• 10.5:1 compression
• Standard bore 3.497"
• Includes pistons, rings, pins, and lock rings
• -Forged from hi-silicon aluminum alloy for superior strength and dependability.
  -The unique piston shape allows tight piston to wall clearances for quieter operation.
  -This shape combined with a top quality ring package and computerized machined anti-detonation grooves offers you the most technically advanced piston kit available.
  -Most Wiseco pistons are machined with valve pockets that are deeper and larger than stock. These pockets provide adequate valve clearance for most high lift cams
  

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