{"product_id":"87mm-forged-piston-set-with-valve-recesses","title":"87mm Forged Piston Set with Valve Recesses","description":"This Tomei forged piston set is engineered for performance applications, specifically for the 2008-2015 Mitsubishi Evo X equipped with the 4B11 engine. The set includes pistons with an 87mm bore, a 23mm pin diameter, and a 62mm pin length. Constructed from durable A4032 material, these pistons feature a valve recess and a specific piston volume of -12.5cc, contributing to optimized engine performance.\n\nThe key specifications of this piston set include a compression height of 27.4mm, top ring dimensions of 1.20mm x 3.05mm, second ring dimensions of 1.20mm x 3.90mm, and an oil ring configuration of 2.50mm x 2.95mm. The individual piston weight is 316.5g, with a pin weight of 133g, resulting in a total weight of 449.5g per piston assembly.\n\nProfessional installation by trained mechanics is recommended for this product, as specialized tools may be required. Buyers are advised to check local regulations regarding emissions and street legality before installation. The manufacturer also notes that specifications, prices, and contents may change without prior notification.","brand":"Tomei","offers":[{"title":"Default Title","offer_id":52873020080440,"sku":"TA202A-MT02A","price":1080.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/87mm-forged-piston-set-with-valve-recesses","provider":"MOTORMIA","version":"1.0","type":"link"}