Cylinder Head

Description

Spark plug fitment: 14mm x 3/4 reach, gasket seat. Intended for high output, large cubic inch racing engines with 4.84" bore spacing, this head is an improvement over existing 18deg designs, such as the Big Chief & Big Duke. The casting is made from A-356 aluminum and is Hot Isostatic Pressing processed (HIP) for superior strength, durability, dimensional stability and exceptional finish quality. These cylinder head features CNC ported intake ports and a raised exhaust runner design for improved flow efficiency. Chambers are fully CNC ported and extra material is included in the deck to allow fine tuning of the combustion chamber design, if desired. Edelbrock and Pat Musi worked with Jesel to improve the valvetrain geometry, delivering Pro-Stock level technology on engines up to 10,000 rpm. Jesel's shaft-mounted system, #KPS-387154, is made from lightweight 7000 series aluminum and features a one-piece stand design that pairs the intake and exhaust stands for improved valvetrain stability. The intake features a 1.820" long fulcrum and is available in 1.60:1 - 1.95:1 rocker ratios

Edelbrock® LLC is one of the nation's premier designers, manufacturers, and distributors of performance and replacement parts for the automotive aftermarket. Our line of products includes camshafts, carburetors, crate engines, cylinder heads, engine dress-up kits, fittings, fuel injection, fuel systems, gaskets, ignition, intake manifolds, sensors, superchargers, thermostats, tools, turbochargers, valve train components, and water pumps. Edelbrock is a proud member of the Edelbrock Group family of brands, including COMP Cams®, FAST® (Fuel Air Spark Technology), TCI® Automotive, Russell® Performance and Lunati Power®, representing over 130 years of performance. Headquartered in Olive Branch, Mississippi, Edelbrock focuses on the future with more innovative parts, creating more opportunities for our customers to go fast. For more information about the Edelbrock Group or any partner brands, visit www.edelbrockgroup.com.

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.

Features & benefits

• 4.84 in. Bore Spacing/Unmachined Combustion Chambers
• Bare Head
• For Big Block Chevy
• High Isostatic Pressing Design
• Requires Edelbrock Valve covers PN 4259
• Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. 'Proven performance' is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and quality. Edelbrock core products are engineered, manufactured, and tested in the USA to ensure the best quality possible. This is further backed by some of the best warranties in the industry and a highly qualified technical support staff.

Specifications

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).