{"product_id":"dart-13211112-pro1-ford-small-block-head-19500-cc-port-6200-cc-chamber","title":"Dart 13211112 - Pro1 Aluminum Small Block Ford Heads","description":"\u003cp\u003eDart 13211112 - Pro1 Aluminum Small Block Ford Heads\u003c\/p\u003e\u003cp\u003eCylinder Head - Pro 1 - Assembled - 2.020 \/ 1.600 in Valves - 195 cc Intake - 62 cc Chamber - 1.437 in Springs - Angle Plug - Aluminum - Small Block Ford - Each\u003c\/p\u003e\u003cp\u003eDart Pro1 Aluminum Small Block Ford Heads\u003c\/p\u003e\u003cp\u003eSerious performance upgrade for street, mild bracket racing and oval track racing. Maximum torque and throttle response from idle to 6,800 RPM. Best for 347-427 cubic inch engines. Works with most standard components. PRO1 20 Deg 195cc Aluminum cylinder heads feature increased airflow for larger engines and higher RPM usage. Standard valve angle and spacing is retained for bolt on compatibility. Exhaust runners are raised .135 in. for improved flow. Manganese Bronze valve guides are used for long life, and hardened valve seats provide durability with unleaded fuels. Features both 2.500 in. and 3.000 in. exhaust bolt patterns. Assemblies include Stainless Steel valves, premium springs, locks, retainers, studs, guide plates and seals.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHeads are sold individually\u003c\/li\u003e\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIndustry\u003c\/strong\u003e: \u003cspan\u003eAutomotive\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCNC Ported\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCombustion Chamber Volume\u003c\/strong\u003e: \u003cspan\u003e62.00\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Valve Diameter\u003c\/strong\u003e: \u003cspan\u003e1.600\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Valve Diameter\u003c\/strong\u003e: \u003cspan\u003e2.020\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eRMR Cast Aluminum Alloy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePort Volume\u003c\/strong\u003e: \u003cspan\u003e195.00\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Angle\u003c\/strong\u003e: \u003cspan\u003e20\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Spring Diameter\u003c\/strong\u003e: \u003cspan\u003e1.437\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Spring Maximum Lift\u003c\/strong\u003e: \u003cspan\u003e0.650\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine Type\u003c\/strong\u003e: \u003cspan\u003eICE\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Spring Type\u003c\/strong\u003e: \u003cspan\u003eDouble\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eEngine Cylinder Head\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMake\u003c\/strong\u003e: \u003cspan\u003eFord\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: \u003cspan\u003eSmall Block\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Series\u003c\/strong\u003e: \u003cspan\u003ePro1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Material\u003c\/strong\u003e: \u003cspan\u003eRMR Cast Aluminum Alloy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Runner Volume\u003c\/strong\u003e: \u003cspan\u003e195.00\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dart","offers":[{"title":"Default Title","offer_id":47290555072650,"sku":"BGWK-13211112","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_13211112-ang135_normalized.jpg?v=1777005704","url":"https:\/\/www.onlyinstock.com\/products\/dart-13211112-pro1-ford-small-block-head-19500-cc-port-6200-cc-chamber","provider":"Only In Stock","version":"1.0","type":"link"}