What does 'bare head' mean for these Edelbrock cylinder heads?

A 'bare head' means the cylinder head casting is supplied without any internal components. You will need to purchase valves, valve springs, retainers, seals, and other valvetrain parts separately to complete the assembly.

Why is the 6-bolt per cylinder design important for my LS3 engine?

The 6-bolt design offers significantly increased clamping force compared to the factory 4-bolt configuration. This results in a stronger seal for the head gasket, which is essential for preventing leaks and maintaining cylinder pressure in high-compression or boosted engine builds.

Are these cylinder heads compatible with all LS3 blocks?

These heads are specifically designed for the 6-bolt per cylinder LS3 configuration, making them compatible with the GM LSX block and aftermarket iron or aluminum 6-bolt per cylinder LS race blocks. They are not compatible with standard 4-bolt LS blocks.

Edelbrock Small-Block LS3 Victor CNC 11-Degreee Bare Cylinder Heads

Specifications

Brand: Edelbrock
Part #: 77670
UPC: 085347776702

Edelbrock Small-Block LS3 Victor CNC 11-Degreee Bare Cylinder Heads

Name: Edelbrock Small-Block LS3 Victor CNC 11-Degreee Bare Cylinder Heads
Brand: Edelbrock
Price: 1702.76 USD
Availability: InStock

$1702.76

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Edelbrock Victor CNC 11-Degree bare cylinder heads for GM LS3 engines. Designed for high horsepower naturally aspirated and boosted applications.

Key Features

Verified fitment for GM LS3 engines using the 6-bolt per cylinder configuration.
Designed for high horsepower, naturally aspirated, and boosted engine applications.
Features a 6-bolt per cylinder design for increased clamping capacity and improved head gasket sealing.
Fully CNC-machined ports and chambers for maximum airflow.
Incorporates an 11-degree valve angle to increase overall flow capability.
Utilizes premium manganese bronze valve guides for long wear and precise tolerances.

These cylinder heads are designed for GM LS3 engines that utilize the 6-bolt per cylinder configuration, compatible with GM LSX blocks and aftermarket 6-bolt LS race blocks.

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Product Details

If you're building a high-horsepower LS3 engine, whether it's naturally aspirated or running boost, these Edelbrock Victor CNC 11-Degree cylinder heads are a solid foundation. They're designed to handle serious power and airflow, making them a great choice for performance builds where stock heads just won't cut it.

What sets these heads apart is the 6-bolt per cylinder design, which is a step up from the factory 4-bolt setup. This means more clamping force and a much better seal for your head gasket, which is crucial for high compression or boosted engines. Edelbrock machines these heads with CNC-machined ports and chambers to maximize airflow, and the 11-degree valve angle helps improve overall flow capability. They also feature manganese bronze valve guides, known for their durability and ability to hold precise tolerances, ensuring a good seal at the valve seat. The deck thickness is a robust .700 inches, and the rocker rails are reinforced, all contributing to their ability to withstand the demands of a high-output engine.

Remember, these are bare heads, meaning you'll need to source your own valves, springs, retainers, and other valvetrain components to complete the assembly. This allows you to customize the valvetrain to your specific build needs. Also, note that these heads are not CARB approved and cannot be shipped to California.