What is the main benefit of using a shaft-mount rocker system?

Shaft-mount rocker systems offer significantly increased mounting stiffness and valve train stability compared to stud-mounted rockers. This rigidity helps to properly position the rocker over the valve, leading to more efficient power transfer from the camshaft and potentially freeing up horsepower.

What materials are used in the construction of these rocker arms?

The rocker arms themselves are made from strong 2024 aluminum, while the shaft that acts as the fulcrum is constructed from hardened 8620 steel. This combination is chosen for its strength and durability in high-performance applications.

What is the significance of the 1.7 ratio?

The 1.7 ratio indicates how much the valve opens relative to the camshaft lobe lift. A higher ratio like 1.7 generally results in more valve lift, which can contribute to improved airflow and increased horsepower, especially when paired with the stability of a shaft-mount system.

COMP Cams BBC Rocker Arm Kit 1504CPG

Name: COMP Cams Shaft Rocker BBC Dart Iron Eagle
Brand: COMP Cams
SKU: comp-cams-comp-cams-shaft-rocker-bbc-dart-iron-eagle-t14-4390614
Price: 2485.25 USD
Availability: BackOrder

COMP Cams Shaft Rocker BBC Dart Iron Eagle

$2485.25

On Backorder

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

COMP Cams BBC Dart Iron Eagle Rocker Arm Shaft. Adds valve train stability and frees up horsepower.

Key Features

This kit fits Chevrolet Big Block engines with standard heads.
Features a 1.7 ratio rocker arm for increased valve lift.
Constructed from strong 2024 aluminum rocker arms.
Utilizes a hardened 8620 steel shaft for the fulcrum.
Shaft-mount design increases mounting stiffness and valve train stability.
Designed using advanced computer technology and field-tested in racing.

⚠️ 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

COMP Cams is well-known for its performance valvetrain components, and this shaft-mount rocker system for Chevrolet Big Block engines is a prime example of their expertise. If you're looking to get the most out of your engine, especially in racing applications, this kit is designed to improve how power is transferred from the camshaft to the valves. Instead of relying on a stud mount, these rockers use a horizontal shaft as the fulcrum. This setup significantly increases the stiffness of the mounting and the overall stability of the valve train.

The rigidity that comes from this shaft system not only helps stabilize the cylinder head but also the entire valve train. This means less flex and more consistent valve operation, which is crucial for maximizing horsepower. The rockers themselves are constructed from strong 2024 aluminum, paired with a robust 8620 hardened steel shaft. This combination is the result of advanced computer technology and extensive field testing in various racing environments. The 1.7 ratio is specifically suited for BBC engines with standard heads, ensuring proper geometry and lift for optimal performance.

This kit is a direct way to enhance your engine's efficiency. By properly positioning the rocker over the valve and providing a solid mounting point, you're enabling a more direct and powerful transfer of energy from the camshaft. This system is a solid option for anyone serious about extracting maximum performance from their Big Block Chevrolet.