{"product_id":"je-pistons-toyota-4u-gse-86-50mm-bore-50mm-oversize-12-5-1-cr-1-5cc-dome-fsr-piston-set-of-4","title":"JE Pistons Forged Piston Kit for Toyota 4U-GSE\/Subaru FA20 86.5mm 12.5:1 - 359154","description":"\u003cp\u003eThe JE Pistons forged piston kit for Toyota 4U-GSE\/Subaru FA20 gives your performance engine build a strong foundation for demanding street, track, and racing use. Manufactured in the USA from 2618 aluminum, these pistons combine durable forged construction with JE's application-specific engineering and decades of motorsport experience. The Forged Side Relief (FSR) design uses a reduced skirt width and shorter wrist pin to help lower friction and reciprocating weight. In-house forging and precision machining produce the crown geometry and piston dimensions needed for a dedicated performance short block. Supplied as a set of four with piston rings, this kit brings proven materials and purposeful design to your next engine build.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"product-specifications\" style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;width:45%;\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eJE Pistons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e359154\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eSeries\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eJE Pistons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eEngine Application\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eToyota 4U-GSE\/Subaru FA20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eCylinder Head\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eFA20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eBore Diameter\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e86.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eCompression Ratio\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e12.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eCompression Height\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e1.290 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003ePiston Material\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eForged 2618 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003ePiston Quantity\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eForging Type\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eFSR (Forged Side Relief)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003ePiston Head Type\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eDome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003ePiston Volume\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e-1.50 cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eAverage Piston Weight\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e322 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003ePiston Ring Set Included\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eTop Compression Ring Thickness\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.0400 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eSecond Compression Ring Thickness\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.0480 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eOil Ring Thickness\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.1110 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eTop Ring Groove Width\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.04000 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eSecond Ring Groove Width\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.04800 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eOil Ring Groove Width\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.11100 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eWrist Pin Outer Diameter\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.866 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eWrist Pin Length\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e2.250 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eWrist Pin Wall Thickness\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.150 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eWrist Pin Material\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e5115 Low Carbon Steel, Case Hardened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eConnecting Rod Length\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e5.091 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eEngine Stroke\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e3.386 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eIntake Valve Relief Depth\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.120 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eIntake Valve Relief Diameter\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e1.520 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eExhaust Valve Relief Depth\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e0.115 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eExhaust Valve Relief Diameter\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e1.280 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eIntake Valve Relief Angle\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e14°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eExhaust Valve Relief Angle\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003e13°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eAccumulator Groove\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003ePrecision Pin Fit\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eSkirt Coating\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eSmooth Crown Finish\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;font-weight:600;\"\u003eManufacturing Location\u003c\/th\u003e\n\u003ctd style=\"border-bottom:1px solid #dddddd;padding:9px 12px;text-align:left;vertical-align:top;\"\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"JE Pistons","offers":[{"title":"Default Title","offer_id":41791157764264,"sku":"JEP359154","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0496\/1016\/2344\/products\/jep279948_master__49786.1640724350_b7f7d1b1-1077-48de-aef4-5d98b1f3e037.jpg?v=1656517038","url":"https:\/\/eliteracefab.com\/products\/je-pistons-toyota-4u-gse-86-50mm-bore-50mm-oversize-12-5-1-cr-1-5cc-dome-fsr-piston-set-of-4","provider":"eliteracefab.com","version":"1.0","type":"link"}