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Edelbrock

Edelbrock GM LS3 Engines E-Street 15-Degree Cylinder Heads w/ .570in Lift - Inconel Valves - 77621

$1,616.20
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SKU:
EDE77621
UPC:
085347899029
Availability:
Regularly stocked product
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Calculated at Checkout
CARB:
This product is not CARB Legal and not for sale in California
MPN:
77621
Clearance Item:
N
Edelbrock introduces its new E-Street 15-degree LS3 69cc cylinder heads (PN 77620) as a premium replacement option, ensuring great power on any high-performance or stock GM LS3 engine build. These heads offer the best performance value of any aftermarket GM LS3 head.Sold in pairs and assembled with premium COMP Cams® valve train components, these LS3 heads are engineered with the same architecture as the factory head, and all stock components will fit without issue. The assembled heads feature Beehive™ Valve Springs, chromoly steel retainers, heavy-duty stainless-steel & Inconel valves, and top-quality valve seals – all inspected and assembled by qualified Edelbrock technicians. The intake valve size is 2.165” while the exhaust is 1.590”. The Beehive Valve Springs allow up to .570” lift camshafts, ideal for many mild to hot camshaft grinds.Edelbrock E-Street 15-degree LS3 cylinder heads are manufactured with premium aluminum alloy, machined to the industry’s tightest tolerances. They feature manganese bronze valve guides for extended wear, with particular emphasis placed on holding precision tolerances on valve seat concentricity. This allows the valves to seal securely, eliminating any leak-down and increasing cylinder pressures during engine operation.All Edelbrock cylinder heads feature patented Clean Cast Technology™, a revolutionary process that eliminates casting flaws and promotes a smoother internal surface finish for greater air and coolant flow. These benefits provide more power and increased cooling ability right out of the box. A unique dual spark-plug-pocket design allows you to use the factory-style tapered-seat spark plugs or gasket-seat spark plugs available in wider heat ranges for maximum tunability.

Please note image may vary from product. Also some parts are special order, may take longer, and cannot be canclled. If delivery time is a concern, please contact us prior to purchase. 

Fidanza Performance is excited to offer the go to name in performance- Edlebrock!

About Edelbrock

Edelbrock was founded in 1938 by Vic Edelbrock Sr. in Los Angeles, California. Initially, the company focused on producing performance parts, with Vic's first major success being a high-performance intake manifold designed for flathead V8 engines. This innovation helped enhance engine efficiency and performance, laying the foundation for the company's reputation in the automotive aftermarket. Vic's love for racing also played a significant role in the early development of Edelbrock, as he designed parts to improve the speed and power of his own cars.

By the 1950s and 1960s, Edelbrock began to expand its product offerings, moving beyond intake manifolds to include carburetors, camshafts, and other components essential for performance cars. The company gained recognition in the burgeoning hot rod and drag racing scenes, particularly in California, where racing culture was rapidly growing. Edelbrock's products were highly regarded for their quality and performance, earning the company a loyal following among car enthusiasts and racers.

During the 1970s, the company solidified its position as a leader in the performance parts industry. With Vic Edelbrock Jr. joining the business, Edelbrock expanded its reach beyond racing into the street performance market, offering a variety of parts for muscle cars and street machines. The Edelbrock carburetor became a go-to choice for enthusiasts looking to boost engine performance, and the company continued to innovate, expanding its product line to meet the growing demands of car enthusiasts.

The 1980s and 1990s marked a period of continued growth for Edelbrock as the company advanced with cutting-edge technologies, such as the introduction of electronic fuel injection (EFI) systems and aluminum cylinder heads. Edelbrock was a key player in motorsports, supporting events in NASCAR, NHRA drag racing, and circle track racing. The company's emphasis on technological innovation helped it remain at the forefront of the performance parts industry.

In the 2000s, Edelbrock adapted to modern advancements in manufacturing, utilizing CNC-machining and computer modeling for greater precision in its products. The company also expanded its portfolio, delving into areas like superchargers, performance exhaust systems, and automotive electronics. As the market shifted, Edelbrock continued to develop high-performance parts to meet the needs of both racers and car enthusiasts.

In 2020, Edelbrock was acquired by Icahn Enterprises, a holding company controlled by investor Carl Icahn. Despite this change in ownership, Edelbrock has maintained its legacy as a trusted brand in automotive performance. The company continues to innovate with new products and technologies, ensuring that it remains a leader in the automotive aftermarket space.

Today, Edelbrock is a globally recognized name in the automotive performance industry. The company’s long history of innovation, dedication to quality, and commitment to performance has earned it a loyal customer base that includes racing professionals, car builders, and hobbyists alike. From its humble beginnings to its current standing as a giant in the performance parts world, Edelbrock’s legacy of excellence continues to shape the automotive landscape.

Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!