Wiseco Pistons Honda Acura RSX-S K20 K24 K20Z 87mm 11.0:1-12.8:1 K634M87
Description
Upgrade your Honda or Acura K20/K24 engine with these premium Wiseco Pistons designed for high performance and reliability. Trusted worldwide by Formula 1, Indy Racing League, and NHRA Pro Stock teams, Wiseco delivers race-winning piston technology right to your build.
Key Features:
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Precision forged from dedicated in-house forgings for lightweight strength
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Advanced multivalve piston design with valve pockets, complex dome & crown shapes
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Includes stainless steel gas nitride rings and optimized skirt profiles for max efficiency
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Proprietary ArmorGlide skirt coating reduces friction, freeing extra horsepower
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Sold as a complete set of 4 pistons with rings, pins, and clips included
Specifications:
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Compatible Engines: Honda/Acura K20 & K24 series (K20Z, RSX-S, etc.)
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Bore Size: 87mm (Standard)
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Compression Ratio: 11.0:1 (K20) to 12.8:1 (K24)
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Dome Face Type with 5cc dome volume
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Gasket Thickness: 0.025"
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Head CC: 50.5
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Weight: 303 grams per piston
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Pin Size: 22mm (Standard Pin Included)
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Compression Height: 30mm
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Rod Length: 5.472" / 5.894"
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Stroke: 3.386" / 3.897"
Included with your purchase:
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4 Wiseco forged pistons
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Matching rings (Part# 8700XX)
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Pins and pin locks (Standard Pin S618, Pin Locks W5590)
Why Choose Wiseco?
Wiseco pistons are engineered for motorsport-level durability and performance. Their advanced coatings and design reduce friction and optimize combustion, delivering more power and longer engine life. Perfect for turbo, naturally aspirated, or high-compression builds.
Condition:
Brand new, factory sealed, and ready for immediate shipment.
Shipping & Payment:
We ship quickly and securely with tracking. Pay safely via PayPal or major credit cards.
Boost your build’s performance and reliability with genuine Wiseco Pistons—trusted by champions!

