What material are these push rods made from?

These push rods are constructed from 4130 chrome moly tubing. This material is known for its strength and durability, making it suitable for the demands of an engine's valvetrain.

Why is the concentricity and length control important for push rods?

Excellent concentricity and closely controlled lengths ensure that each push rod is very similar to the others. This consistency is vital for maintaining precise valvetrain geometry across all cylinders, which impacts engine performance and reliability.

What is the purpose of the black oxide finish?

The black oxide finish, along with heat treatment, is applied to enhance the durability of the push rods. It also provides a layer of protection against corrosion.

Specifications

Brand: Manley Performance
Part #: 25226-16
UPC: 807298076133

Manley Push Rod - 5/16 Dia. - 7.350 Length - 0.120 Wall - 4130 Chrome Moly - Swedged End - Set of 16

Name: Manley Push Rod - 5/16 Dia. - 7.350 Length - 0.120 Wall - 4130 Chrome Moly - Swedged End - Set of 16
Brand: Manley Performance
SKU: manley-performance-manley-push-rod-5-16-dia-7-350-length-0-120-wall-4130-chrome--t14-879684
Price: 334.17 USD
Availability: BackOrder

$334.17

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Manley Performance push rods, 5/16" dia. x 7.350" length, 0.120" wall. Made from 4130 chrome moly with swedged ends. Set of 16.

Key Features

Set of 16 push rods, each measuring 5/16 inch in diameter, 7.350 inches in length, and with a 0.120 inch wall thickness.
Constructed from 4130 chrome moly tubing for strength and durability.
Features swedged ends for a secure fit.
Meticulously formed ends with exact radii ensure proper contact with lifters and rocker arms.
Exhibits excellent concentricity and closely controlled lengths for consistent valvetrain geometry.
Heat treated and finished with a black oxide coating for improved durability and corrosion resistance.

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About this part

Product Details

If you're rebuilding the top end of your engine, getting the valvetrain geometry just right is crucial for performance and longevity. These Manley push rods are designed to be a solid component in that system, helping to transfer the motion from your camshaft to your rocker arms accurately. They're made from 4130 chrome moly, a strong and durable material that can handle the stresses of engine operation.

What sets these apart is the attention to detail in their construction. The ends are meticulously formed with exact radii, which helps ensure they seat properly against the lifters and rocker arms. You'll also find excellent concentricity and closely controlled lengths, meaning each push rod in the set is very similar to the others. This consistency is important for maintaining proper valvetrain geometry across all cylinders. They're heat treated and finished with a black oxide coating for added durability and corrosion resistance.