{"product_id":"ycp-p30-b-series-pistons-em1-civic-si-integra","title":"YCP P30 B Series Pistons for B16A\/B18A\/B\/B18C","description":"\u003cul\u003e\n\u003cli\u003eProven All-Motor B-Series Pistons \u003c\/li\u003e\n\u003cli\u003eAC8A Casting, Hard-Anodized Tops \u003c\/li\u003e\n\u003cli\u003e81 \/ 81.5 \/ 82mm Bore Sizes \u003c\/li\u003e\n\u003cli\u003eWorks With OEM or Forged Rods \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eYCP P30 Pistons - B16\/B18 (All-Motor Build)\u003c\/h3\u003e\n\n\u003cp\u003eIf you're building an all-motor B-series and want more compression and real strength without stepping up to full forged prices, these YCP P30 pistons are the proven, affordable answer. They're a stronger casting than the factory B-series pistons, hard-anodized and Teflon-coated, and they've earned their reputation, we've run YCP pistons for over 20 years with great results. For a GSR, Type R, or B16 all-motor build on a budget that still demands real durability, these are the piston.\u003c\/p\u003e\n\n\u003ch4\u003ePick Your Bore Size\u003c\/h4\u003e\n\n\u003cp\u003eThese come in three sizes to match your block, so measure before you order.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e81.0mm\u003c\/strong\u003e is the standard bore, for a block at factory spec or being rebuilt without boring.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e81.5mm (0.5mm over)\u003c\/strong\u003e is for a block bored 0.5mm oversize, common when a cylinder needs cleaning up.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e82.0mm (1mm over)\u003c\/strong\u003e is for a block bored 1mm oversize.\u003c\/p\u003e\n\n\u003cp\u003eIf your block's been bored, order the size for the final bore, not the original. If you're unsure, measure it or check with your machine shop.\u003c\/p\u003e\n\n\u003ch4\u003eWith or Without Rings\u003c\/h4\u003e\n\n\u003cp\u003eChoose the configuration for your build.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWith rings\u003c\/strong\u003e is the complete kit: 4 pistons, wrist pins, wrist pin clips, and a premium gas-nitrided ring set, everything to build the engine. This is the simplest buy for a full build, and the way most people order these.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWithout rings\u003c\/strong\u003e is the pistons, pins, and clips only, for anyone running a specific ring set or who already has rings on hand. If you're going this route, have your rings sorted before you build.\u003c\/p\u003e\n\n\u003ch4\u003eWhat Compression You'll Run\u003c\/h4\u003e\n\n\u003cp\u003eThe compression ratio depends on your block and head combination, so here's what common setups land at.\u003c\/p\u003e\n\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth scope=\"col\"\u003eBlock + Head\u003c\/th\u003e\n            \u003cth scope=\"col\"\u003eCompression\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eB16A block and head\u003c\/td\u003e\n\u003ctd\u003e10.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eB18C block + PR3 head\u003c\/td\u003e\n\u003ctd\u003e11.2:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eB18C block + P72 head\u003c\/td\u003e\n\u003ctd\u003e11.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eB18A\/B block + PR3 head\u003c\/td\u003e\n\u003ctd\u003e12.1:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eB18A\/B block + P72 head\u003c\/td\u003e\n\u003ctd\u003e12.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThese are the common combinations, your final ratio depends on your exact block, head, gasket, and bore. The higher ratios (the B18A\/B combinations) are aggressive and want quality fuel and a proper tune; the B16A and B18C setups are more street-friendly. Match the combination to the compression you're after and the fuel you'll run.\u003c\/p\u003e\n\n\u003ch4\u003eWhy YCP Pistons Hold Up\u003c\/h4\u003e\n\n\u003cp\u003eBuilt stronger than the factory B-series pistons, which is what makes them worth running on a serious all-motor build.\u003c\/p\u003e\n\n\u003cp\u003eThey're cast from a stronger \u003cstrong\u003eAC8A-grade\u003c\/strong\u003e material than OEM and \u003cstrong\u003eT6 heat-treated\u003c\/strong\u003e for greater strength and heat resistance. The piston tops are \u003cstrong\u003ehard-anodized\u003c\/strong\u003e for added strength and durability where the combustion heat hits hardest, and the skirts are \u003cstrong\u003eTeflon-coated\u003c\/strong\u003e, which extends piston life, improves cylinder sealing for less blow-by, and reduces friction to free up a little power.\u003c\/p\u003e\n\n\u003cp\u003eThey use \u003cstrong\u003e21mm floating wrist pins\u003c\/strong\u003e with dual oil holes for better pin lubrication, and the included ring set is a premium \u003cstrong\u003egas-nitrided 1.0\/1.2\/2.8\u003c\/strong\u003e set built for high-performance durability. For a cast piston at this price, the feature set is serious.\u003c\/p\u003e\n\n\u003ch4\u003eWorks With OEM or Forged Rods\u003c\/h4\u003e\n\n\u003cp\u003eAn important install detail, so get this right.\u003c\/p\u003e\n\n\u003cp\u003eThese are compatible with \u003cstrong\u003eboth OEM and aftermarket forged connecting rods\u003c\/strong\u003e, with one key difference: on OEM rods, do \u003cstrong\u003enot\u003c\/strong\u003e use the wrist pin clips; on aftermarket forged rods, \u003cstrong\u003edo\u003c\/strong\u003e use the wrist pin clips. Follow that for your rod choice, it's determined by the rod, not preference. If you're pairing these with forged rods, we stock \u003ca href=\"https:\/\/www.hybrid-racing.com\/search?\u0026amp;sort_by=relevance\u0026amp;filter.p.m.pim.vehicle_fitment=Civic%20SI%201999-2000\u0026amp;filter.p.m.pim.vehicle_fitment=Integra%201994-2001\u0026amp;filter.p.m.part.category2=Connecting%20Rods%20-%204Cyl\u0026amp;q=b%20series%20rods\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eB-series forged connecting rods\u003c\/a\u003e to complete the rotating assembly.\u003c\/p\u003e\n\n\u003cp\u003eThis is for the B-series builder putting together an all-motor B16 or B18 who wants proven, affordable pistons with real strength, hard-anodized tops, Teflon skirts, and a quality gas-nitrided ring set, without paying full forged prices. Pick your bore size, choose the compression ratio that suits your block, head, and fuel, decide with or without rings, and use the right pin-clip setup for your rods. Twenty-plus years of proven results behind them, and the value to build a strong bottom end without breaking the budget.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngines:\u003c\/strong\u003e B16A, B18A\/B, B18C (all-motor). \u003cstrong\u003eFits:\u003c\/strong\u003e 1990-2001 Integra, 1999-2000 Civic Si, 1994-1997 Del Sol VTEC. \u003cstrong\u003eBore sizes:\u003c\/strong\u003e 81.0mm (standard), 81.5mm (+0.5mm), 82.0mm (+1mm). \u003cstrong\u003eConfigurations:\u003c\/strong\u003e with rings (complete kit, includes gas-nitrided ring set) or without (pistons\/pins\/clips only). \u003cstrong\u003eConstruction:\u003c\/strong\u003e AC8A casting, T6 heat-treated, hard-anodized tops, Teflon skirts, 21mm floating pins, dual oil holes. \u003cstrong\u003eRings (with kit):\u003c\/strong\u003e premium gas-nitrided 1.0\/1.2\/2.8. \u003cstrong\u003eRods:\u003c\/strong\u003e works with OEM (no pin clips) or forged (use pin clips); we stock \u003ca href=\"https:\/\/www.hybrid-racing.com\/search?\u0026amp;sort_by=relevance\u0026amp;filter.p.m.pim.vehicle_fitment=Civic%20SI%201999-2000\u0026amp;filter.p.m.pim.vehicle_fitment=Integra%201994-2001\u0026amp;filter.p.m.part.category2=Connecting%20Rods%20-%204Cyl\u0026amp;q=b%20series%20rods\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eforged B-series rods\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e1990-1993 Acura Integrs GS\/LS\/RS\u003cbr\u003e1994-2001 Acura Integra GS\/LS\/RS\/Special Edition\u003cbr\u003e1994-2001 Acura Integra GS-R\u003cbr\u003e1997-2001 Acura Integra Type R\u003cbr\u003e1999-2000 Honda Civic Si\u003cbr\u003e1994-1997 Honda Del Sol VTEC\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"SpeedFactory","offers":[{"title":"81mm \/ No","offer_id":68046171275298,"sku":"YCP-P30-81","price":208.0,"currency_code":"USD","in_stock":false},{"title":"81.5mm \/ No","offer_id":68046171308066,"sku":"YCP-P30-81-5","price":208.0,"currency_code":"USD","in_stock":false},{"title":"82mm \/ No","offer_id":68046171340834,"sku":"YCP-P30-82","price":208.0,"currency_code":"USD","in_stock":false},{"title":"81mm \/ Yes","offer_id":68046171373602,"sku":"YCP-P30-81-KIT","price":249.99,"currency_code":"USD","in_stock":false},{"title":"81.5mm \/ Yes","offer_id":68046171406370,"sku":"YCP-P30-81-5-KIT","price":249.99,"currency_code":"USD","in_stock":false},{"title":"82mm \/ Yes","offer_id":68046171439138,"sku":"YCP-P30-82-KIT","price":249.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/ycp-p30-b-series-pistons-for-b_z5em.jpg?v=1791483990","url":"https:\/\/www.hybrid-racing.com\/products\/ycp-p30-b-series-pistons-em1-civic-si-integra","provider":"Hybrid Racing","version":"1.0","type":"link"}