What material are these push rods made from?

These push rods are constructed from 4130 chrome moly steel, a strong and durable material often used for internal engine components. They are also heat-treated and finished with a black oxide coating.

What does 'swedged end' mean for a push rod?

A swedged end means the end of the tube has been formed or crimped to create a specific shape, in this case, with exact radii. This ensures a precise fit against the lifter and rocker arm, promoting accurate valve train operation.

Why is concentricity and controlled length important for push rods?

Concentricity refers to how centered the tube is, and closely controlled lengths ensure uniformity across the set. This consistency is crucial for establishing proper valve train geometry, which affects how your engine runs and performs.

Specifications

Brand: Manley Performance
Part #: 25163-8
UPC: 807298036632

Manley Push Rod - 7/16 Dia. - 9.250 Length - 0.165 Wall - 4130 Chrome Moly - Swedged End - Set of 8

Name: Manley Push Rod - 7/16 Dia. - 9.250 Length - 0.165 Wall - 4130 Chrome Moly - Swedged End - Set of 8
Brand: Manley Performance
SKU: manley-performance-manley-push-rod-7-16-dia-9-250-length-0-165-wall-4130-chrome--t14-879807
Price: 215.58 USD
Availability: BackOrder

$215.58

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Manley Performance push rods, 7/16" diameter, 9.250" length, 0.165" wall. Set of 8. Built for precise valve train operation.

Key Features

Fits: Check manufacturer fitment data to confirm compatibility with your vehicle.
Made from 4130 chrome moly steel for strength.
Each push rod measures 7/16 inches in diameter with a 0.165-inch wall thickness.
Push rods are 9.250 inches long.
Features swedged ends with exact radii for proper seating.
Excellent concentricity and closely controlled lengths ensure consistency.

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About this part

Product Details

Manley Performance is well-known for making strong internal engine components, and these push rods are a great example of that. If you're rebuilding your top end or looking for a solid replacement, these push rods are built to help your valve train work smoothly and accurately. They measure 7/16 inches in diameter with a 9.250-inch length and a 0.165-inch wall thickness, made from durable 4130 chrome moly steel.

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 your lifters and rocker arms. You'll also find excellent concentricity and closely controlled lengths across the set, meaning each push rod is very similar to the next. This consistency is important for predictable valve train geometry. They're also heat-treated and finished with a black oxide coating for added durability and corrosion resistance.

This set includes eight push rods, which is what most common V8 engines require. Having a well-matched set like this helps ensure your engine's valvetrain operates as intended, contributing to reliable performance.