{"product_id":"wiseco-acura-4v-domed-8cc-strutted-87-0mm-piston-kit","title":"Wiseco K573M87AP Forged 87 mm +8 cc Dome Pistons for Honda\/Acura K-Series","description":"\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eHonda K-Series (K20A, K20Z)\u003c\/li\u003e \u003cli\u003eHonda K24 block with K20A\/Z head\u003c\/li\u003e \u003cli\u003eAcura RSX-S \/ Civic Si (K20 variants)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eForged from 2618 aluminum for high strength and durability\u003c\/li\u003e \u003cli\u003e+8 cc dome design to increase compression for performance builds\u003c\/li\u003e \u003cli\u003eArmorGlide® skirt coating reduces friction and improves wear resistance\u003c\/li\u003e \u003cli\u003eStrutted forging for enhanced rigidity under high stress\u003c\/li\u003e \u003cli\u003ePrecision CNC-machined crown with optimized ring grooves\u003c\/li\u003e \u003cli\u003eForced-pin oiling for reliable lubrication at high RPM\u003c\/li\u003e \u003cli\u003eIncludes high-performance piston ring set\u003c\/li\u003e \u003cli\u003e22 mm floating wrist pins for strong piston-to-rod connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eBore: 87.00 mm\u003c\/li\u003e \u003cli\u003eCompression Height: 30.00 mm\u003c\/li\u003e \u003cli\u003eDome Volume: +8.00 cc\u003c\/li\u003e \u003cli\u003eWrist Pin Diameter: 22 mm\u003c\/li\u003e \u003cli\u003ePiston Material: Forged 2618 aluminum\u003c\/li\u003e \u003cli\u003ePiston Weight: ~330 g each\u003c\/li\u003e \u003cli\u003eEstimated Compression Ratio: ~13.5:1 (K24 block, K20 head)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e4x forged pistons (87 mm, +8 cc dome)\u003c\/li\u003e \u003cli\u003e4x 22 mm floating wrist pins\u003c\/li\u003e \u003cli\u003e4x circlips \/ locks\u003c\/li\u003e \u003cli\u003e4x performance piston ring sets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003e The Wiseco K573M87AP is a high-performance forged piston kit engineered for Honda and Acura K-Series engines. Featuring an 87 mm bore and +8 cc dome, it raises compression, ideal for naturally aspirated or performance-focused K20\/K24 builds.\u003c\/p\u003e\u003cp\u003e Forged from 2618 aluminum, these pistons provide exceptional strength and durability under high stress and RPM. The ArmorGlide® coated skirts reduce friction, while the strutted forging design enhances structural integrity. The kit includes a high-performance ring set and 22 mm floating wrist pins for reliable piston-to-rod connection.\u003c\/p\u003e\u003cp\u003e Proper installation requires checking piston-to-wall clearance, ring gaps, and deck height. The +8 cc dome necessitates careful selection of head gasket and calculation of compression ratio, ensuring optimal performance for high-output builds.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53325024264511,"sku":"WISK573M87AP","price":712.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/eb44fccb6213fd98e9be3d8bcb5e6457L_1f1dd6e2-c255-470d-b87a-d32cdfd1aefa.jpg?v=1780025345","url":"https:\/\/wcaperformance.com\/products\/wiseco-acura-4v-domed-8cc-strutted-87-0mm-piston-kit","provider":"WCA Performance","version":"1.0","type":"link"}