{"product_id":"edelbrock-611819-cyl-head-polished-nr-chrysler-426-572-cnc-hemi-bare-w-valves-single","title":"Edelbrock 611819 - Cyl Head Polished (Nr) Chrysler 426-572 Cnc Hemi Bare W\/Valves Single","description":"\u003cp\u003eEdelbrock 611819 - Cyl Head Polished (Nr) Chrysler 426-572 Cnc Hemi Bare W\/Valves Single\u003c\/p\u003e\u003cp\u003eCYLINDER HEAD RACE\u003c\/p\u003e\u003cp\u003eXX CYL HEAD POLISHED (NR) CHRYSLER 426-572 CNC HEMI BARE W\/VALVES SINGLE\u003c\/p\u003e\u003cp\u003eEdelbrock Victor Jr. 23° 220 cylinder heads are an affordable option that delivers maximum power in high-performance street and entry-level competition engines. Its 64cc combustion chamber yields around 10:1 compression ratio in a typical flat-top application and about 12.5:1 when used with some of the most common 12cc dome pistons. One of the key features of the Victor Jr. 23° 220 cylinder heads is the CNC machined chambers and bowls, which result in consistency and improved performance. They also feature angled spark plug holes and maintain the stock 23° valve angle as well as the intake flange bolt pattern for use with 1986 and earlier intake manifolds. All of this allows these cylinder heads to deliver 530-580 hp potential right-out-of-the-box, making them ideal for a budget minded engine build desiring a high quality cylinder head that still uses a stud and guide plate rocker system. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves to be used. ** Combustion chamber volume: 64cc; Intake runner volume: 220cc; Exhaust runner volume: 85cc; Intake valve diameter: 2.10\"; Intake valve diameter: 2.10\"; Exhaust valve diameter: 1.60\"; Valve stem diameter: 5\/16\"; Valve guides: Manganese bronze; Deck thickness: 11\/16\"; Valve spring diameter: 1.55\"; Valve spring maximum lift: 0.700\"; Rocker stud: 7\/16\"; Guideplate: Hardended steel; Pushrod diameter: 5\/16\"; Valve angle: 23°; Exhaust port location: Raised .300\"; Spark plug fitment: 14mm x 3\/4 reach, gasket seat.  ** INSTALLATION NOTE: Check cam manufacturers specs for compatibility with valve springs for spring rates. Match with Edelbrock head gasket sets or use Fel-Pro intake gasket #1206 and Fel-Pro exhaust gasket #1405. Requires hardened pushrods. Use Head Bolt Kits for easy installation. These heads require the use of a 14mm x 3\/4in. reach, flat gasket spark plug with a heat range appropriate to your application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible w\/Stock Or Aftmkt. Exh. Manifolds\/Headers\u003c\/li\u003e\n\u003cli\u003eCNC Machined Combustion Chambers\u003c\/li\u003e\n\u003cli\u003eExh. Ports Moved 1.5 in. Horizontally\u003c\/li\u003e\n\u003cli\u003eImproved Air Flow\u003c\/li\u003e\n\u003cli\u003eWill Require Custom Exh. Manifolds\/Headers\u003c\/li\u003e\n\u003cli\u003eCNC Machined Ports\u003c\/li\u003e\n\u003cli\u003eExtra Thick 3\/4 in. Deck For Improved Stability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Type\u003c\/strong\u003e: \u003cspan\u003eStandard\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine Make\/Size\u003c\/strong\u003e: \u003cspan\u003eFord 351W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: \u003cspan\u003eRaw\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePreparation\u003c\/strong\u003e: \u003cspan\u003eRequires Professional Preparation (Bare)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eUsage\u003c\/strong\u003e: \u003cspan\u003eRacing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":49924539023638,"sku":"EDEL-611819","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/0878\/9782\/files\/2a9fc71eb27ecf512c74e3f1dd4919ed_2c764cd5-b3d3-4b78-8b21-44f84da0dfa7.jpg?v=1758791319","url":"https:\/\/www.cspracing.com\/products\/edelbrock-611819-cyl-head-polished-nr-chrysler-426-572-cnc-hemi-bare-w-valves-single","provider":"Complete Street Performance","version":"1.0","type":"link"}