{"product_id":"cast-iron-cylinder-head-for-chevy-small-block","title":"Cast Iron Cylinder Head for Chevy Small Block","description":"The World Products 011150 SPORTSMAN II is a high-performance cast iron cylinder head engineered for Chevy small block engines. This bare casting is designed to deliver significant power improvements over stock OEM heads, with reported gains of 30-70 horsepower. It is also 50-state emissions legal, carrying E.O. #D-343-1, making it suitable for a wide range of applications.\n\nConstructed from high-density cast iron, this cylinder head features 200cc intake runners and 69cc exhaust ports, with a standard 23-degree valve angle. The intake valves measure 2.020 inches, and the exhaust valves are 1.600 inches, both with 11\/32 inch stems. The combustion chambers can be specified in 50, 64, or 72cc sizes and accommodate either straight or angled spark plugs. The head includes integral cast iron valve guides and hardened exhaust valve seats, with integral intake valve seats. It is machined to accept 1.560\" and 1.250\" spring seats and comes with ERSON stainless steel valves in assemblies. A 1.5 ratio rocker arm is standard, though 1.6 ratio rockers will require pushrod hole elongation. The valve cover rail is raised with both perimeter and center bolt patterns.","brand":"World Products","offers":[{"title":"Default Title","offer_id":52664138826040,"sku":"011150","price":731.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687542178.jpg?v=1784333923","url":"https:\/\/store.motormia.co\/products\/cast-iron-cylinder-head-for-chevy-small-block","provider":"MOTORMIA","version":"1.0","type":"link"}