{"product_id":"performance-cast-iron-cylinder-head","title":"Performance Cast Iron Cylinder Head","description":"The Engine Quest EQ-CH350I is a cast iron performance cylinder head engineered for Chevrolet V8 engines, specifically fitting models from 1955 to 1986.\n\nThis head is IMCA sanctioned for sport mod applications and features 178cc intake runners and 76cc combustion chambers. Constructed with a thicker deck for enhanced strength and an improved design to resist cracking, the EQ-CH350I also boasts a superior port finish for increased flow and redesigned water passages for better thermal conductivity. It includes hardened exhaust seats, CNC machined guides and seats, and undergoes a 25-point quality check on every unit, featuring a 3-angle valve finish.\n\nKey specifications include a 5.7L (350ci) displacement, straight spark plug design, and a 7-bolt hole exhaust mounting pattern with a 69-86 intake manifold bolt pattern. The head is compatible with perimeter valve cover holes and includes a heat riser. It is available bare, allowing for the installation of your preferred valve train components.\n\nEngine Quest emphasizes that all their cylinder heads outperform competitors, with the EQ-CH350I specifically noted for its flow improvements over stock 441 style heads and suitability for IMCA classes allowing this part.","brand":"Engine Quest","offers":[{"title":"Default Title","offer_id":52687955132728,"sku":"EQ-CH350I","price":502.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687898294.jpg?v=1784888012","url":"https:\/\/store.motormia.co\/products\/performance-cast-iron-cylinder-head","provider":"MOTORMIA","version":"1.0","type":"link"}