Cylinder Head

Victor Jr. Series Cylinder Head

Victor Jr. Series Cylinder Head; Complete; 4-Bolt Flange; 500-650+ hp; +0.125 Exh. Port; 69cc Chamber Vol.; 2.20 Intake/1.60 in. Exh. Valves; 0.680 in. Max Lift; Single;

• Cylinder Head Type: Standard
• Emission: Non-Emissions
• Engine Make/Size: Chevy LS3
• Finish: Cast
• Preparation: Bolt On (Not Required)
• Type: Complete
• Usage: Racing
• WARNING CA Proposition 65: Yes
• WARNING CA Proposition 65 Message: WARNING: This product can expose you to Lead; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit www.P65warnings.ca.gov.

• For Competition Engines That Have Reached Their Limit
• Ground Up Design That Incorporates Subtle Changes
• Improved Flow and Combustion
• 2.20 in. Intake Valve w/Canted Configuration
• 0.125 in. Raised Exhaust Runner For Improved Flow
• CNC Machined Ports and Combustion Chambers
• Capable Of Producing 650+ hp On an LS3 w/Stock Rocker Arms

The Edelbrock Victor Jr. LS3 cylinder heads are ideal for use in high performance street and competition engines that have reached their limit with a stock-style cylinder head design. Most aftermarket LS3 cylinder heads on the market today are simply stock head designs with larger ports. Our Victor Jr. LS3 cylinder heads are 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 heads 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. These cylinder heads also feature fully CNC'(TM)d intake ports, combustion chambers and exhaust ports for consistency and improved performance. All of these changes make these cylinder heads capable of producing 600+ hp on an LS3 engine with stock rocker arms, intake manifold and exhaust manifolds. Installation Note: #61339: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O

When you design and sell the best-engineered performance products in the world, you have to have a rigorous testing program. Why? Without adequate testing, there's no way to stand behind your product with confidence. That's why every product we design and sell at Edelbrock is tested and approved by Edelbrock engineers in a real world environment on state-of-the-art equipment. Our three Super Flow computerized engine dynos are capable of measuring 11 separate engine variables up to speeds of 12,000 rpm. For 2007, we added a new Super Flow SF902 engine dyno. It's fully automated and programmable to simulate various driving situations, and is equipped with WinDyn software for the very latest in testing equipment. For real-world tuning, there's our Super Flow model SF-840 eddy-current chassis dyno that can handle up to 1,000 hp at the wheels and speeds of 200 mph. When all testing is completed, the results evaluated, and the part has passed all performance criteria, then, and only then, is the product deemed ready for production. These precise testing procedures are applied to the entire Edelbrock line for performance that's guaranteed. Edelbrock test vehicles are driven by Edelbrock engineers and employees to get a "real world" feeling for the performance improvements. Our products are also tested and used by professional race car teams and drivers. Working with these talented individuals is just another extension of our research and development process so when we say "proven performance" we really mean it! Top racing teams in all forms of motorsports rely on Edelbrock to produce parts that they can count on to win races and championships. Further underscoring our commitment to the racing community, Edelbrock is the only aftermarket intake manifold manufacturer licensed by NASCAR.