{"product_id":"edelbrock-chevy-bb-victor-cnc-dr-17-cylinder-heads-120cc-1030628-t14","title":"Edelbrock Chevy BB Victor CNC DR-17 Cylinder Heads - 120cc","description":"\u003ch3\u003e\u003cstrong\u003eManufacturer Part # : 615467\u003c\/strong\u003e\u003c\/h3\u003e\u003cbr\u003e\u003ch2\u003eMarket Description\u003c\/h2\u003e\n\u003cp\u003eThe Victor CNC DR-17 Oval-Port Cylinder Heads for Big-Block Chevrolet engines (PN 615467) have a larger 120cc combustion chamber designed for large displacement, high-horsepower, naturally aspirated engines running on pump gas. This design allows for a true flat-top piston configuration, promoting greater efficiency and power output. \n\nOffered \"bare,\" these heads feature a 425cc port volume, 2.450\" intake valves, 1.850\" exhaust valves, raised intake and exhaust ports, and a relocated spark plug position. The raised intake and exhaust ports are particularly beneficial in maximizing cylinder fill during the valve opening cycle, while the revised spark plug location ensures a more complete combustion. Combined with optimized valve placement, these improvements result in better airflow, more power, and higher overall engine efficiency.\n\nEach Victor CNC DR-17 cylinder head is cast at Edelbrock's state-of-the-art foundry using premium aluminum alloy and machined in the Edelbrock Race Center in Mooresville, North Carolina. This material undergoes hot isostatic pressing (H.I.P.) to ensure a more stable and dense grain structure, which increases durability and performance. The heads feature large CNC oval ports explicitly designed to maintain high airspeed, contributing to a high torque curve throughout the engine's operating range.\n\nManufactured to the industry's tightest tolerances, these heads come fully CNC-machined, including their ports and combustion chambers. A 17° valve angle is incorporated to improve flow capability, while ductile-iron interlocking valve seats and premium manganese-bronze valve guides ensure long-lasting performance. The valve seat concentricity precision allows a perfect seal, eliminating leak-down and increasing cylinder pressure during operation. These heads are designed to be used with a shaft rocker system and can bolt directly onto standard deck blocks with a tall-deck manifold, but tall deck blocks require intake runner spacers.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description - Extended\u003c\/h2\u003e\n\u003cp\u003eVictor CNC DR-17 Cylinder Heads for Oval-Port Big-Block Chevrolet engines have 120cc combustion chambers, allowing a true flat-top piston configuration for large displacement, high-horsepower, naturally aspirated pump-gas engines.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description - Long\u003c\/h2\u003e\n\u003cp\u003eVictor CNC DR-17 Cylinder Heads for Big-Block Chevys, 120CC\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description - Short\u003c\/h2\u003e\n\u003cp\u003eEdelbrock Chevy BB Victor CNC DR-17 Cylinder Heads - 120cc\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description - Invoice\u003c\/h2\u003e\n\u003cp\u003eEdelbrock BBC Cylinder Head\u003c\/p\u003e\n\n\u003ch2\u003eAAIA Part Type Description\u003c\/h2\u003e\n\u003cp\u003eEngine Cylinder Head\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description - Abbreviated\u003c\/h2\u003e\n\u003cp\u003eCyl. Head\u003c\/p\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":49000038531210,"sku":"T14.1030628","price":5806.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0688\/4599\/4122\/files\/b9db8052c799e1909937c03adbec9f67L.jpg?v=1777766941","url":"https:\/\/qjipdu-tf.myshopify.com\/products\/edelbrock-chevy-bb-victor-cnc-dr-17-cylinder-heads-120cc-1030628-t14","provider":"SBX Performance","version":"1.0","type":"link"}