{"product_id":"dart-iron-eagle-s-s-small-block-chevy-cylinder-heads-10","title":"Dart 10021171 Iron Eagle S\/S Small Block Chevy Cylinder Heads","description":"Stock replacement, street and strip performance, or towing upgrade with mildly modified engines from idle to 5,500 RPM. Best for 305-383 cubic inch engines. Works with most standard components. Dart Iron Eagle S\/S 23 Deg 165cc heads produce great throttle response and low to mid-range torque for street performance engines. Our precision cast ports and chambers produce outstanding air flow without time consuming porting. Dart S\/S heads are legal in many racing sanctions with Iron head rules. Assemblies include Stainless Steel valves, premium springs, locks, retainers, and seals. Guide plates not included for self-aligning rocker styles.","brand":"Dart","offers":[{"title":"Default Title","offer_id":51201833468219,"sku":"BGWK_10021171","price":1565.28,"currency_code":"CAD","in_stock":false}],"url":"https:\/\/performancepartscanada.ca\/products\/dart-iron-eagle-s-s-small-block-chevy-cylinder-heads-10","provider":"Performance Parts Canada","version":"1.0","type":"link"}