What is the primary benefit of using 4130 chrome moly steel for pushrods?

4130 chrome moly steel is a strong and durable alloy chosen for its ability to withstand the higher stresses found in performance engine builds. It helps prevent bending or flexing under increased valve spring pressures and higher lift camshafts.

What does 'excellent concentricity' mean for these pushrods?

Concentricity refers to how well the centerlines of the pushrod's ends align with its main body. Excellent concentricity means the pushrod is straight and balanced, which contributes to consistent valve train operation and reduces potential wear.

Are these pushrods suitable for stock replacement?

These pushrods are designed with performance engine builds in mind, featuring materials and construction details that handle higher stresses. While they may fit, they are generally intended for applications with upgraded camshafts or valve springs where their enhanced strength is beneficial.

Specifications

Brand: Manley Performance
Part #: 25214-16
UPC: 807298075891

Manley Push Rod - 5/16 Dia. - 6.750 Length - 0.120 Wall - 4130 Chrome Moly - Swedged End - Set of 16

Name: Manley Push Rod - 5/16 Dia. - 6.750 Length - 0.120 Wall - 4130 Chrome Moly - Swedged End - Set of 16
Brand: Manley Performance
SKU: manley-performance-manley-push-rod-5-16-dia-6-750-length-0-120-wall-4130-chrome--t14-879679
Price: 334.17 USD
Availability: BackOrder

$334.17

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Manley Push Rod Set 25214-16. Built from 4130 chrome moly for improved durability in performance engine builds.

Key Features

Fits engine builds requiring pushrods with 5/16 inch diameter, 6.750 inch length, and 0.120 inch wall thickness.
Constructed from durable 4130 chrome moly steel for strength and longevity.
Features meticulously formed ends with exact radii for precise contact.
Offers excellent concentricity and closely controlled lengths for consistency.
Includes a black oxide finish for corrosion resistance.
Swedged end design reinforces critical contact points.

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About this part

Product Details

If you're rebuilding the top end of your engine, especially for a performance application, getting the pushrods right is key. These pushrods from Manley Performance are made from 4130 chrome moly steel, a strong material chosen for its ability to handle the stresses of higher lift cams and increased valve spring pressures without bending or flexing.

Manley paid close attention to the details here. The ends are meticulously formed with exact radii, which helps ensure proper contact with the rocker arms and lifters. They also have excellent concentricity and closely controlled lengths, meaning each pushrod in the set is very similar to the others. This consistency is important for predictable valve train geometry. They're heat treated and finished with a black oxide coating, which adds a layer of corrosion resistance and helps them look good.

This set includes 16 pushrods, enough for a typical V8 engine. The swedged end design is a common feature that helps reinforce the ends where they experience the most load.