{"product_id":"set-of-8-hypereutectic-pistons-4-280-inch-bore","title":"Set of 8 Hypereutectic Pistons, 4.280-inch Bore","description":"The Keith Black KB400-030 is a set of eight hypereutectic pistons engineered for Mopar B-Series engines. With a 4.280-inch bore and specific ring groove dimensions of 5\/64 x 5\/64 x 3\/16 inches, these pistons are designed to deliver enhanced engine performance.\n\nCrafted from a 390 aluminum alloy enriched with high silicon content, these pistons are heat-treated to meet T6 standards, resulting in a component that is approximately 30% stronger than standard aluminum pistons. Their lightweight design contributes to improved throttle response and quicker RPM changes, while their robust construction ensures durability under high compression and high-temperature conditions. Key race-ready features include strategically located upper compression rings, gas-accumulator grooves for optimal combustion control, drilled oil returns for enhanced lubrication, and spiral-lock retainer grooves for secure assembly.\n\nThese pistons feature a dome volume of +6.00 cc, which is suitable for a variety of engine builds and compression ratio requirements. KB Performance Pistons are produced by UEM, a manufacturer committed to quality, operating under an ISO 9001:2015 certified Quality Management System.","brand":"Keith Black","offers":[{"title":"Default Title","offer_id":52662810181944,"sku":"KB400-030","price":510.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687499394.jpg?v=1784321255","url":"https:\/\/store.motormia.co\/products\/set-of-8-hypereutectic-pistons-4-280-inch-bore","provider":"MOTORMIA","version":"1.0","type":"link"}