{"product_id":"edelbrock-77699-cylinder-head","title":"Edelbrock 77699 - Victor CNC GM LS7 12 Degree 6-Bolt Cylinder Head, 307cc, .220in Int Port, CI PM Seat","description":"\u003cp\u003eEdelbrock 77699 - Victor CNC GM LS7 12 Degree 6-Bolt Cylinder Head, 307cc, .220in Int Port, CI PM Seat\u003c\/p\u003e\u003cp\u003eVictor CNC GM LS7 12­­deg 6-Bolt Cylinder Head 307cc .220\"IntPort, CI PM Seat\u003c\/p\u003e\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 improved water jacket design improves thermal conductivity. These premium 110 BHN 355-T6 aluminum alloy cylinder heads (#77699) are designed with a 12-degree valve angle and unique 307 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 exhaust 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-percent CNC-ported runners and combustion chambers optimize volume, atomization, and velocity. The 6-bolt design increases clamping capacity and greatly 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 deck 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 you want to use single rockers like #1479-16, you will need our LS7 rocker stands (#54520-2).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e100-percent CNC-ported runners optimize volume, atomization \u0026amp; velocity. Increased 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. Sold 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\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCNC-Machined Combustion Chamber\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCNC-Machined Exhaust Runner\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCNC-Machined Intake Runner\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCombustion Chamber Volume\u003c\/strong\u003e: \u003cspan\u003e69\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Port Shape\u003c\/strong\u003e: \u003cspan\u003eD-Port\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Runner Volume\u003c\/strong\u003e: \u003cspan\u003e93\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Valve Angle\u003c\/strong\u003e: \u003cspan\u003e12\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGuide Plates Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHeat Crossover\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Port Shape\u003c\/strong\u003e: \u003cspan\u003eRectangle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Runner Volume\u003c\/strong\u003e: \u003cspan\u003e307\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Valve Angle\u003c\/strong\u003e: \u003cspan\u003e12\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Valve Diameter\u003c\/strong\u003e: \u003cspan\u003e2.200\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRocker Arm Nuts Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRocker Arm Studs\/Bolts Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRocker Arms Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Covers Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Guide Material\u003c\/strong\u003e: \u003cspan\u003eManganese Bronze\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Locks Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Seals Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Spring Retainers Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Springs Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAccessory Bolt Holes Drilled\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCamshaft Style\u003c\/strong\u003e: \u003cspan\u003eRoller\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCombustion Chamber Style\u003c\/strong\u003e: \u003cspan\u003eHeart\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Material\u003c\/strong\u003e: \u003cspan\u003e356-T6 Aluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Style\u003c\/strong\u003e: \u003cspan\u003eBare\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Port Location\u003c\/strong\u003e: \u003cspan\u003eRaised 0.100\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Valves Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Port Location\u003c\/strong\u003e: \u003cspan\u003eRaised 0.220\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Valves Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMachined for O-Ring\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNotes\u003c\/strong\u003e: \u003cspan\u003e6-Bolt design compatible for both OEM \u0026amp; 6-Bolt blocks, 0.400\" Raised Rocker Rail Requires COMP Shaft Mount Rockers OR part #54520; OEM LS7 Rocker Adaptor (Requires 2)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOiling Style\u003c\/strong\u003e: \u003cspan\u003eThrough Pushrod\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eQuantity\u003c\/strong\u003e: \u003cspan\u003eSingle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRemanufactured\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSpark Plug Style\u003c\/strong\u003e: \u003cspan\u003eAngle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSteam Holes Drilled\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Cover Mounting Style\u003c\/strong\u003e: \u003cspan\u003eCenter Bolt\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Guides Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Seat Machine Style\u003c\/strong\u003e: \u003cspan\u003e4-angle intake\/4-angle exhaust\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Seat Material\u003c\/strong\u003e: \u003cspan\u003eCI-PM (Copper Infiltrated Powdered Metal)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Seats Machined\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRequired Products\u003c\/strong\u003e: \u003cspan\u003e54520 - ROCKER ARM STAND FOR LS7\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRelated Products\u003c\/strong\u003e: \u003cspan\u003e146202B-LSXR 102mm Intake Manifold LS7,60840001K2LUN-Crank \u0026amp; Rod Kit, LS (Non LS7 Type 5) 58X Reluctor,5497-LS7 Timing Cover (Fits RHS® or GM Blocks),28875-Super Victor Small Block Chevy LS7 Intake Manifold EFI STD Flange,28905-Super Victor Small Block Chevy LS7 EFI Dominator Flange Intake Manifold,2887-Super Victor Small-Block Chevy LS7 Intake Manifold Carb,2890-Super Victor Small-Block Chevy LS7 Dominator Flange Carburetor Intake Manifold,146204-LSXHR 103mm Intake Manifold for LS7 Raised Rectangular Port\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCross sell \/ Upsell Part Numbers\u003c\/strong\u003e: \u003cspan\u003e146202B-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\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":47313040343178,"sku":"EDEL-77699","price":1733.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_b349f4a96051b62f3abd44a13e902d2fl_normalized_64f7a78d-daae-49fc-94bb-82bb23cfbff0.jpg?v=1779261982","url":"https:\/\/www.onlyinstock.com\/products\/edelbrock-77699-cylinder-head","provider":"Only In Stock","version":"1.0","type":"link"}