Edelbrock Cylinder Head Victor CNC Bare 291CC With Down Nozzles/ Copper Valve Seat For LS7 Engine Blocks

With a GM LS 6-bolt design, CNC-machined ports, and a 12-degree valve angle, this Bare Victor CNC Cylinder Head (77689) works with GM LSX blocks and all aftermarket iron/aluminum 6-bolt per cylinder LS race blocks to increase flow. This Edelbrock creation is equipped with 291cc runners, down nozzles, and copper valve seats, making it the perfect choice for high compression naturally-aspirated engines and high boost applications. 

Features and Benefits: 
- CNC-Machined Ports, Runners, and Chambers 
- .220” Raised Intake Ports
- 1.615 Exhaust Valves
- Combustion Chamber Volume: 69 cc
- Deck Height: 9.240"
- Deck Thickness: .750"
- Intake Runner Volume: 291 cc
- Durable Cast Aluminum Construction 
- 12-Degree Valve Angle
- Increased Air and Coolant Flow
- Copper Valve Seats 
- Includes Down Nozzles 
- Revised Water Jacket Design for Better Tunability 
- Manganese Bronze Guides Allow Valves to Seal Securely 
- Ideal for Max HP and High Valve Lift Applications
- Patented Clean Cast Technology Eliminates Casting Flaws 

The Victor CNC Cylinder Head features a raised intake runner design with .220” raised intake runners and .100” raised exhaust ports. This design offers a clearer view into the cylinders and delivers an improved short turn. The raised intake runner design fits both stock and aftermarket LS7 intake manifolds and is compatible with stock or aftermarket valve trains. 

You'll find that Edelbrock's 6-bolt design is superior to the factory 4-bolt option in terms of increased clamping capacity and improved head gasket sealing. This is a bare Cylinder Head manufactured using patented Clean Cast Technology to eliminate casting flaws and to create a smooth internal surface finish for the best flow and power possible.