{"product_id":"manley-15-21-wrx-fa20f-86-1mm-1mm-bore-10-1-dish-piston-set-platinum-series","title":"Manley 15-21 WRX FA20F 86.1mm +.1mm Bore 10:1 Dish Piston Set - Platinum Series","description":"Our signature \"Platinum Series\" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.\nManley Piston Set, SUBARU 86.1mm\/1.292 CD\/DISH .\n\u003cul\u003e\n  \u003cli\u003eChrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff\/DLC alloys, providing additional durability.\u003c\/li\u003e\n  \u003cli\u003eUnique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.\u003c\/li\u003e\n  \u003cli\u003eExacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.\u003c\/li\u003e\n  \u003cli\u003eCam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.\u003c\/li\u003e\n  \u003cli\u003e2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned for the Subaru FA20F engine, the Manley Performance Platinum Series piston set is engineered for high-performance street, track, and competition applications. This set includes four forged pistons with an 86.1mm bore size, a +.1mm overbore, and a 10:1 compression ratio dish configuration. Part number MAN632701C-4 combines proven piston design features with materials selected for strength and durability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Forged from domestic 2618 aluminum alloy for high strength and performance in demanding applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e Includes premium chrome moly wrist pins and uses cam and barrel skirt profiles designed to support power while helping reduce cylinder wall wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManley Performance uses specialized fixturing that allows skirt turning and ring groove machining to be completed in a single operation. This process helps maintain accurate ring groove-to-skirt squareness, supporting consistent piston performance. Exacting standards for ring lands and grooves are intended to promote reliable ring seal and efficient combustion. The piston design also incorporates a dish configuration that delivers a nominal 10:1 compression ratio when matched with the appropriate engine components and setup.\u003c\/p\u003e\n\u003cp\u003eThe Platinum Series is built for engine builders and tuners who require durable forged pistons for performance-oriented FA20F builds. Verify bore size, compression ratio, piston-to-wall clearance, ring package, and compatibility with the specific engine configuration before installation. This product is not CARB approved and may not be legal for use on pollution-controlled vehicles in all applications. Manley Performance part number MAN632701C-4 identifies this four-piston set.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from domestic 2618 aluminum alloy for strength and durability\u003c\/li\u003e\n\u003cli\u003e86.1mm piston diameter with a +.1mm overbore configuration\u003c\/li\u003e\n\u003cli\u003e10:1 compression ratio dish design for compatible FA20F engine combinations\u003c\/li\u003e\n\u003cli\u003ePremium chrome moly wrist pins included\u003c\/li\u003e\n\u003cli\u003eCam and barrel skirt profiles designed to support performance and help reduce cylinder wall wear\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring lands and grooves to promote consistent ring seal\u003c\/li\u003e\n\u003cli\u003eFour-piston set for Subaru FA20F applications\u003c\/li\u003e\n\u003cli\u003eNot CARB approved\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: true\u003cbr\u003e\nCarb Acknowledgement Required: true\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Y\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nRegular Stock: t\u003cbr\u003e\nUnits Per Sku: 1","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":47258257817702,"sku":"man632701C-4","price":748.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/8703\/7237\/files\/6acf3956da43b4211946bbbee55ab5f7L_2d190432-c0ca-4904-a066-f08775543e4c.jpg?v=1790177134","url":"https:\/\/jdmuscleusa.com\/products\/manley-15-21-wrx-fa20f-86-1mm-1mm-bore-10-1-dish-piston-set-platinum-series","provider":"JDMuscle","version":"1.0","type":"link"}