{"product_id":"wiseco-honda-turbo-f-top-1-176-x-81-5mm-piston-kit","title":"Wiseco K542M815AP Forged 81.50 mm Pistons for Honda B16A \/ B18","description":"\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eHonda B16A - Civic Si \/ VTi (1993-2001)\u003c\/li\u003e \u003cli\u003eHonda B17A1 - Integra GS-R\u003c\/li\u003e \u003cli\u003eHonda B18A1\/B1 - Integra LS \/ RS\u003c\/li\u003e \u003cli\u003eHonda B18C1 - Integra GS-R\u003c\/li\u003e \u003cli\u003eHonda B18C5 - Integra Type R\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eHigh-strength 2618 forged aluminum construction for maximum durability\u003c\/li\u003e \u003cli\u003eArmorGlide® coated skirts to reduce friction and prevent cold scuffing\u003c\/li\u003e \u003cli\u003eStrutted forging design for improved stability under high RPM\u003c\/li\u003e \u003cli\u003eFlat-top crown with precision-machined ring lands\u003c\/li\u003e \u003cli\u003eForced pin oiling for consistent wrist pin lubrication\u003c\/li\u003e \u003cli\u003eAnti-detonation and pressure accumulator grooves for optimized ring seal\u003c\/li\u003e \u003cli\u003ePerformance ring set included for high cylinder sealing efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eBore Diameter: 81.50 mm (3.209 in)\u003c\/li\u003e \u003cli\u003eCompression Height: 1.175 in\u003c\/li\u003e \u003cli\u003ePiston Volume: -2.4 cc\u003c\/li\u003e \u003cli\u003ePiston Material: Forged 2618 aluminum\u003c\/li\u003e \u003cli\u003eWrist Pin Diameter: 21 mm\u003c\/li\u003e \u003cli\u003eRing Sizes: 1.2 mm \/ 1.2 mm \/ 3.0 mm\u003c\/li\u003e \u003cli\u003eSet Quantity: 4 pistons\u003c\/li\u003e \u003cli\u003eIntended Use: Performance rebuilds, NA or mild boost\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e4 x Forged pistons (K542M815AP)\u003c\/li\u003e \u003cli\u003e4 x Wrist pins\u003c\/li\u003e \u003cli\u003e8 x Circlips \/ pin locks\u003c\/li\u003e \u003cli\u003e4 x Piston ring sets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003e The Wiseco K542M815AP piston kit is engineered for builders working on high-performance Honda B-series engines, including B16A and B18 variants. These pistons deliver excellent strength and thermal stability thanks to their 2618 forged aluminum construction, making them ideal for spirited street driving, track use, or moderate boost applications.\u003c\/p\u003e\u003cp\u003e The flat-top design with a -2.4 cc volume supports a balanced compression ratio, while the strutted forging adds rigidity for high-RPM reliability. ArmorGlide® skirt coating reduces drag and improves cylinder wall longevity. Each piston includes forced pin oiling and optimized ring grooves for strong and consistent sealing.\u003c\/p\u003e\u003cp\u003e This set includes four pistons, rings, wrist pins, and locks - ready for installation following proper piston-to-wall clearance and ring gap setup. Designed with precision and reliability in mind, this kit is a trusted choice for B-series performance builds.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53325024002367,"sku":"WISK542M815AP","price":712.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/5490b2acf91fa65b022bd4714a1e7528L.jpg?v=1780025342","url":"https:\/\/wcaperformance.com\/products\/wiseco-honda-turbo-f-top-1-176-x-81-5mm-piston-kit","provider":"WCA Performance","version":"1.0","type":"link"}