{"product_id":"victor-cnc-gm-ls7-12-6-bolt-cylinder-head-291cc-220-int-port-ci-pm-seat","title":"Edelbrock 77679 - Victor CNC GM LS7 12­­° 6-Bolt Cylinder Head, 291cc, .220” Int Port, CI PM Seat","description":"\u003cp\u003eEdelbrock Victor CNC® LS7 Cylinder Heads are one of the first aftermarket high-performance LS-style heads to feature a raised intake runner design that fits both stock and aftermarket LS7 intake manifolds and valvetrain setups. The raised runner and rolled valve angle increase overall flow capability, while an improve d water jacket design improves thermal conductivity. These premium 110 BHN 355-T6 aluminum alloy cylinder heads (#77679) are designed with a 12° valve angle and 291 cc .220\" raised intake runners to provide a better line of sight into the 69 cc chambers and allow for an improved short turn. The exh aust ports are also raised .100” to allow the use of stock and aftermarket manifolds, while the .400” raised rail works with aftermarket rockers. The 100% CNC-ported runners and combustion chambers optimize volume, atomization, and velocity. The 6-bolt design increases clamping capacity and grea tly improves head gasket retention in high-horsepower and boosted applications in small and large cubic inch, hardcore street applications. It also makes it compatible with the advanced Edelbrock LS Race, GM LSX 6-bolt, and OEM 4-bolt blocks. Built to withstand race conditions, the .750”-thick dec k surface and a reinforced solid rocker rail increase integrity, rigidity, and stability. The copper-infused powder metal seats received a 2.200” intake and 1.615” exhaust valve job. The heads are sold bare, but we recommend COMP shaft mount rocker system (#1523CPG), valves, and springs, or if y ou want to use single rockers like #1479-16, you will need our LS7 rocker stands (#54520-2).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePremium 110 BHN aluminum alloy, .220\" raised intake port, .100\" raised exhaust port, CI PM valve seats, 307cc or 291cc intake port volume, 2.250\" or 2.200\" x 1.615\" valve job\u003c\/li\u003e\n\u003cli\u003e100% CNC-ported runners optimize volume, atomization \u0026amp; velocity.\u003c\/li\u003e\n\u003cli\u003eIncreased clamping capacity greatly improves head gasket retention in high horsepower \u0026amp; boosted applications.\u003c\/li\u003e\n\u003cli\u003eCan be used in small \u0026amp; large cubic inch, hardcore street applications.\u003c\/li\u003e\n\u003cli\u003eSold Bare, Fully Machined with Valve job.\u003c\/li\u003e\n\u003cli\u003e6-bolt head design is compatible w\/ the advanced EDELBROCK® LS Race, GM LSX Blocks, or OEM 4-bolt blocks.\u003c\/li\u003e\n\u003cli\u003eThe heads also utilize the popular LS 6-bolt head design, making them compatible with both the EDELBROCK® LS Race Block and GM LSX Blocks.\u003c\/li\u003e\n\u003cli\u003eIncreased clamping capacity greatly improves head gasket retention in high horsepower and boosted applications.\u003c\/li\u003e\n\u003cli\u003eThe raised runner and rolled valve angle increase overall flow capability while an improved water jacket design improves thermal conductivity.\u003c\/li\u003e\n\u003cli\u003e400\" raised rail works w\/ aftermarket rockers; .100\" raised exhaust port allows use of stock \u0026amp; aftermarket manifolds\u003c\/li\u003e\n\u003cli\u003e.750\" thick deck surface increases integrity; Reinforced solid rocker rail increases rigidity \u0026amp; stability; 355T6 aluminum withstands race conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory Bolt Holes Drilled:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Style:\u003c\/strong\u003e Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Ported:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC-Machined Combustion Chamber:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC-Machined Exhaust Runner:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC-Machined Intake Runner:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Chamber Style:\u003c\/strong\u003e Heart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Chamber Volume:\u003c\/strong\u003e 69 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Type:\u003c\/strong\u003e Bare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sell \/ Upsell Part Numbers:\u003c\/strong\u003e 146202B-LSXR 102mm Intake Manifold; LS7 1479-16-GM LS Upgraded OEM Rocker Arms (LS7) 13704TL-KIT-GM LS7 \u0026amp; Gen V LT Rocker Arm Upgrade Kit \u0026amp; Installation Tool\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e 356-T6 Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Style:\u003c\/strong\u003e Bare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Height:\u003c\/strong\u003e 9.240\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e .750\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Port Location:\u003c\/strong\u003e Raised 0.100\" in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Port Shape:\u003c\/strong\u003e D-Port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Runner Volume:\u003c\/strong\u003e 93 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve Angle:\u003c\/strong\u003e 12 deg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Victor CNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injection Down Nozzles:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Race\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Plates Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Crossover:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Port Shape:\u003c\/strong\u003e Rectangle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Location:\u003c\/strong\u003e Raised 0.220\" in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner Volume:\u003c\/strong\u003e 291 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Angle:\u003c\/strong\u003e 12 deg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Job Diameter:\u003c\/strong\u003e 2.200 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined for O-Ring:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44849598365831,"sku":"EDE77679","price":2572.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/EDEL_77695_CYLINDER_20HEADS_Victor_20CNC_V1.jpg?v=1788268642","url":"https:\/\/checkout.northernperformance.ca\/products\/victor-cnc-gm-ls7-12-6-bolt-cylinder-head-291cc-220-int-port-ci-pm-seat","provider":"Northern Performance","version":"1.0","type":"link"}