{"product_id":"fx-series-forged-piston-set-4-090-bore-12cc-dish","title":"FX Series Forged Piston Set, 4.090\" Bore, -12cc Dish","description":"The D.S.S. Racing FX Series Forged Piston Set is designed for high-performance applications in Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines. Constructed from a high-grade forged aluminum alloy, these pistons offer a superior strength-to-weight ratio and excellent thermal conductivity, with a forging process that refines the grain structure to resist cracking and deformation under extreme conditions.\n\nKey features include a 4.090\" bore size, a 1.21\" compression height for optimal piston-to-head clearance, and a -12cc dish top design to manage compression and reduce detonation risk. The pistons are equipped with a .945\" pin diameter and precision-machined ring grooves (1.2mm top and second rings, 3mm oil ring) for superior sealing. They are compatible with a 3.720\" stroke and a 6.2\" connecting rod length.\n\nThis piston set is designed for direct fitment in most 6.4L 392 HEMI engines, including various models of the Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Jeep Grand Wagoneer, Jeep Wrangler, and Ram 2500\/3500 from 2011-2025. Installation requires standard machining checks and clearances for proper ring seal and piston-to-cylinder wall fitment. Builders should verify compatibility with their specific engine configuration, including stroke and rod length, to achieve optimal performance and reliability. Professional installation is recommended to maintain engine integrity and warranty compliance.","brand":"D.S.S. Racing","offers":[{"title":"Default Title","offer_id":52664193679672,"sku":"2-6833-4090","price":689.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/686906691.jpg?v=1784334988","url":"https:\/\/store.motormia.co\/products\/fx-series-forged-piston-set-4-090-bore-12cc-dish","provider":"MOTORMIA","version":"1.0","type":"link"}