EDELBROCK 77621 Edelbrock 77621 E-Street Assembled Cylinder Heads for GM LS-Series, Pair

Edelbrock E-Street assembled cylinder heads are designed for GM LS-Series applications and supplied as a matched pair. Part number 77621 features aluminum construction, making these cylinder heads a practical choice for performance engine builds requiring assembled components.

Each cylinder head is configured with 2.165-inch intake valves and 1.590-inch exhaust valves. The design incorporates a 260 cc intake port and a 69 cc combustion chamber, providing key specifications for selecting and planning an LS-Series engine combination.

The assemblies include valve springs measuring 1.282 inches and 1.077 inches. With the valves, springs, and related components assembled, the pair is intended to support streamlined cylinder head installation compared with sourcing and assembling individual components separately.

Verify engine application requirements and build specifications before ordering to ensure the valve, port, chamber, and spring configurations meet your project needs.

Features:

• Brand: Edelbrock
• Part Number: 77621
• Application: GM LS-Series engines
• Product Type: E-Street assembled cylinder head pair
• Construction: Aluminum
• Intake Valve Diameter: 2.165 inches
• Exhaust Valve Diameter: 1.590 inches
• Intake Port Volume: 260 cc
• Combustion Chamber Volume: 69 cc
• Spring Dimensions: 1.282 inches and 1.077 inches
• Quantity: Pair