What material are these push rods made from?

These push rods are constructed from 4130 chrome moly steel. This material is chosen for its strength and durability in high-stress engine applications.

What does the black oxide finish do?

The black oxide finish helps provide some protection against corrosion. It's also part of the heat treatment process that improves the hardness and wear resistance of the push rods.

Are these push rods suitable for stock or modified engines?

With their 4130 chrome moly construction, precise dimensions, and heat-treated swedged ends, these push rods are well-suited for both stock and modified engine builds where reliable valve train components are important.

Specifications

Brand: Manley Performance
Part #: 25731-16
UPC: 807298032313

Manley Push Rod - 5/16 Dia. - 7.325 Length - 0.080 Wall - 4130 Chrome Moly - Swedged End - Set of 16

Name: Manley Push Rod - 5/16 Dia. - 7.325 Length - 0.080 Wall - 4130 Chrome Moly - Swedged End - Set of 16
Brand: Manley Performance
SKU: manley-performance-manley-push-rod-5-16-dia-7-325-length-0-080-wall-4130-chrome--t14-879727
Price: 261.22 USD
Availability: BackOrder

$261.22

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Manley Performance push rod set. Made from 4130 chrome moly with swedged ends for improved durability.

Key Features

This product is a set of 16 push rods.
Each push rod measures 5/16 inches in diameter.
The length of each push rod is 7.325 inches.
These push rods have a wall thickness of 0.080 inches.
Constructed from 4130 chrome moly steel for strength.
Features swedged ends for improved durability.

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About this part

Product Details

In this set, you get 16 push rods, each measuring 5/16 inches in diameter, 7.325 inches long, with a 0.080-inch wall thickness. They're constructed from 4130 chrome moly steel, a well-known material for its strength and durability in engine components. The ends are meticulously formed with exact radii, and the push rods themselves exhibit excellent concentricity and closely controlled lengths, which are important for consistent valve train operation.

These push rods are heat treated and finished with a black oxide coating. This treatment helps improve their hardness and resistance to wear, while the black oxide finish offers some protection against corrosion. The swedged end design is a practical detail that adds strength where it's needed most in the valve train. For anyone rebuilding or modifying an engine where precise valve train geometry and component strength are key, these Manley push rods are a solid option.