{"product_id":"5-7l-hemi-cnc-ported-eagle-cylinder-heads-1","title":"5.7L HEMI CNC Ported Eagle Cylinder Heads","description":"The Modern Muscle Performance 5.7L HEMI CNC Ported Eagle Heads are engine cylinder heads engineered to deliver maximum performance through refined airflow characteristics. Each head undergoes a specialized process including proprietary CNC porting of intake and exhaust ports, hand-blending of bowls, and a precision multi-angle valve job to ensure optimal engine breathing.\n\nThese components come standard with new seals, shims, and moly retainers, and are fully cleaned, deburred, and assembled prior to shipping. The units are supplied with PSI 1511 springs as standard, with an optional upgrade available to PSI 1516 springs. Note that there is an estimated 3-5 week lead time for this product, and customers must account for a refundable core charge or provide their own 5.7L HEMI heads for the reworking process. Please check local and state laws regarding emissions compliance before purchase.","brand":"Modern","offers":[{"title":"Default Title","offer_id":52689272111416,"sku":"MMP-5709CNCHD","price":2322.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687392047.jpg?v=1784904381","url":"https:\/\/store.motormia.co\/products\/5-7l-hemi-cnc-ported-eagle-cylinder-heads-1","provider":"MOTORMIA","version":"1.0","type":"link"}