What makes these cylinder heads an upgrade over stock?

These Edelbrock E-CNC heads feature fully CNC'd ports and combustion chambers for improved airflow and performance. They also have a high-velocity port design and an improved casting that offers more material for porting compared to stock LS3 heads.

Are these cylinder heads compatible with my existing rocker arms?

Yes, these Edelbrock E-CNC LS3 cylinder heads are compatible with stock-style rocker arms, which can simplify the installation process.

What engine displacements and types are these heads designed for?

These heads are designed for Chevrolet Small-Block Gen IV LS engines, including those with 364 cubic inch (6.0L) displacements like the L76 and L77, as well as 376 cubic inch (6.2L) displacements like the L92 and L99.

Edelbrock Cylinder Head E-Cnc GM Gen IIi/IV LS3 Small Port Standard Block

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Specifications

Brand: Edelbrock
Part #: 61319
UPC: 85347613199

Edelbrock Cylinder Head E-Cnc GM Gen IIi/IV LS3 Small Port Standard Block

Name: Edelbrock Cylinder Head E-Cnc GM Gen IIi/IV LS3 Small Port Standard Block
Brand: Edelbrock
SKU: edelbrock-edelbrock-cylinder-head-e-cnc-gm-gen-iii-iv-ls3-small-port-standard-bl-t14-126403
Price: 1703.13 USD
Availability: BackOrder

$1703.13

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Edelbrock E-CNC LS3 cylinder heads for GM Gen III/IV LS engines. Fully CNC'd ports for improved performance.

Key Features

Fully CNC'd intake ports, combustion chambers, and exhaust ports for improved performance.
High-velocity port design offers better airflow compared to stock LS3 cylinder heads.
Improved casting and design provides more material for porting and modification.
Compatible with stock-style rocker arms for easier installation.
Designed for GM Gen III/IV LS engines with standard blocks.
Features a 13.25-degree valve angle.

These cylinder heads are designed for Chevrolet Small-Block Gen IV engines including L76, L77, L92, L94, L99, and L9H. They are compatible with 364 (6.0L) and 376 (6.2L) displacements.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

With fully CNC'd intake ports, combustion chambers, and exhaust ports, the Edelbrock #61319 E-CNC LS3 cylinder head offers an improved design over stock heads. This makes them a solid choice for street or strip LS engines, especially those with cathedral port heads or a 3.89-inch bore. The high-velocity port design is a notable upgrade from the stock LS3 cylinder head, giving porters more material to work with if you plan further modifications.

These heads are built with an improved casting and design, providing a strong foundation for performance builds. They are compatible with stock-style rocker arms, simplifying installation. The 13.25-degree valve angle is a key design element that contributes to their performance characteristics.

This cylinder head is a great option for engine swaps and general-purpose high-performance applications. They are designed to work with standard block configurations for GM Gen III and Gen IV LS engines.