What is the rocker arm ratio and why does it matter?

The rocker arm ratio, in this case 1.7, determines how much the valve opens relative to the camshaft lobe lift. A higher ratio like 1.7 generally means the valve will open further and for a slightly longer duration, which can lead to improved airflow and potentially more power.

What size studs do these rocker arms use?

This specific set, part number 19054-16, is designed for Ford small-block engines that use 5/16" rocker arm studs. It's important to verify your engine's stud size before purchasing.

What vehicles are covered by this rocker arm set?

This set fits a range of Ford vehicles equipped with 289 and 351 Windsor engines from 1977 through 1993. Examples include the Ford Bronco, various E-Series Econoline vans, and the Ford LTD.

COMP Cams Ultra-Gold ARC Rocker Arms 1.7 Ratio 19054-16

Name: COMP Cams Alum Ped MT Rockers Ford SB 1.
Brand: COMP Cams
Price: 729.52 USD
Availability: InStock

COMP Cams Alum Ped MT Rockers Ford SB 1.

$729.52

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COMP Cams Ultra-Gold ARC rocker arms for Ford 289-351W engines. Improve power and stability with a 1.7 ratio.

Key Features

Fits 1977-1993 Ford 289 and 351 Windsor engines with 5/16" studs.
Features a 1.7 rocker arm ratio to increase valve lift and duration.
Constructed from aluminum and built in the USA after FEA analysis.
Withstands up to 700 lbs of pressure for improved valve train stability.
Set includes 16 rocker arms for a complete engine application.
Designed to improve engine power and stability.

⚠️ 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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Will this fit your vehicle?

Product Details

If you're rebuilding the top end of your classic Ford small-block, especially a '77-'92 289 or 351 Windsor, getting the valve train geometry just right is key to unlocking its full potential. These Ultra-Gold ARC rocker arms from COMP Cams are designed to help you do exactly that, offering a 1.7 ratio that can improve valve lift and duration for better power delivery.

Built in the USA, these rockers are constructed from aluminum and have undergone FEA analysis to ensure they can handle the demands of performance engines. They are rated to withstand up to 700 lbs of pressure, which helps maintain stability and accuracy in the valve train, even under stress. This set is specifically for engines using 5/16" studs, and includes 16 pieces to cover all cylinders.

This set fits a wide range of Ford vehicles from the late 70s through the early 90s, including popular models like the Ford Bronco, E-Series vans, and LTD. They are a solid option for anyone looking to optimize their engine's performance with well-made components.