Sport Compact 87.5mm Bore 5cc Pistons | Honda & Acura K20A/Z Engines | K634M875

Honda & Acura K20A/Z Sport Compact Pistons by Wiseco

Wiseco Sport Compact pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design.

Being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier xx rings and optimized skirt profiles. The pistons come standard with our ArmorGlide® coating material for reduced friction and noise, freeing up horsepower.

Features

• Lightweight pistons w/ superior strength & design
• Specially designed valve pockets
• Complex dome and crown shapes
• Steel nitride/napier xx rings
• Optimized skirt profiles
• ArmorGlide® coating material for reduced friction and noise

Applications

• 2006 - 2011 Honda Civic Si
• 2002 - 2006 Acura RSX Type-S
• Honda K20A/Z Engines

Specifications

• Bore: 87.50mm / 3.445"
• Oversize: 0.060
• Stroke: 86mm / 3.386"
• Rod: 139mm / 5.472"
• Comp Ht: 30mm / 1.181"
• Head cc's: 50.5
• Volume: 5cc
• Gasket Thickness: 0.63mm / 0.025"
• Deck Clearance: 0.025mm / 0.001"
• Block Ht: 212mm / 8.347"
• Comp Ratio: 11.3

What's In The Box?

• 4 - Sport Compact K20A/Z Pistons
• Piston Rings and Pins

Warranty

• Manufacturer Standard Warranty