{"product_id":"sbc-ls3-cylinder-head-61339-edelbrock","title":"Edelbrock 61339 - SBC LS3 Cylinder Head","description":"\u003cp\u003eThe Edelbrock #61339 Victor Jr. LS3 cylinder head is ideal for use in high Performance's street and competition engines that have reached their limit with a stock-style cylinder head design. Most aftermarket LS3 cylinder head on the market today are simply stock head designs with larger ports. Our Victor Jr. LS3 cylinder head is an all-new ground up design that incorporates subtle changes for improved flow and combustion. These changes were made to improve the limitations encountered in the stock cylinder head when increasing the performance level of the engine. Changes include a 2.20\" diameter intake valve with a canted configuration similar to what is utilized in the GM LT1 Gen V engine. The intake valve change along with the unique port shape produce almost 400cfm peak flow. This cylinder head also feature fully CNC intake ports, combustion chambers and exhaust ports for consistency and improved performance. All of these changes make this cylinder head capable of producing 600+ hp on an LS3 engine with stock rocker arms, intake manifold and exhaust manifolds.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Type:\u003c\/strong\u003e Hydraulic Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Ported:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Chamber Volume:\u003c\/strong\u003e 69\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Type:\u003c\/strong\u003e Complete\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e 0.625 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGR Port:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Port Location:\u003c\/strong\u003e +.125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Runner Volume:\u003c\/strong\u003e 85\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve Diameter:\u003c\/strong\u003e 1.60 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Victor Jr.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e Manganese Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Plates Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 500-650\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 280\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Diameter:\u003c\/strong\u003e 2.20 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold Individually\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetainer Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Angle:\u003c\/strong\u003e Exhaust 39 deg\/Intake 37 deg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Material:\u003c\/strong\u003e Ductile Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Victor Jr.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e Exhaust 11 X 0 deg\/Intake 11 x 3 deg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Diameter:\u003c\/strong\u003e 1.30 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Maximum Lift:\u003c\/strong\u003e 0.680 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Springs Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e 0.314961 in\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":45924110237831,"sku":"EDE61339","price":3565.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/9617b822328f27792cbf5dfc1eca695e0fc3581325a67e08037c381f0149d197.webp?v=1790198707","url":"https:\/\/checkout.northernperformance.ca\/products\/sbc-ls3-cylinder-head-61339-edelbrock","provider":"Northern Performance","version":"1.0","type":"link"}