What is the purpose of push rods in an engine?

Push rods connect the rocker arms to the lifters in an overhead valve engine. They transfer the motion from the camshaft to the valves, opening and closing them to control the flow of air and fuel into the cylinder and exhaust gases out.

Why is the length and diameter of push rods important?

Correct push rod length is crucial for establishing proper valve train geometry. Incorrect length can lead to issues with valve lift, rocker arm geometry, and potential damage to other valve train components.

What does the black oxide finish do?

The black oxide finish on these push rods provides a layer of protection against rust and corrosion. It also helps to identify them as a quality aftermarket component.

Specifications

Brand: Manley Performance
Part #: 25813-8

Manley .080in Wall 7.925in Length 3/8in Dia 4130 Chrome Moly Swedged End Push Rods (Set of 8)

Name: Manley .080in Wall 7.925in Length 3/8in Dia 4130 Chrome Moly Swedged End Push Rods (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-080in-wall-7-925in-length-3-8in-dia-4130-chrome-moly-s-t14-834744
Price: 157.27 USD
Availability: BackOrder

$157.27

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Manley Performance 4130 Chrome Moly push rods. Set of 8, 7.925in length, 3/8in diameter. Features swedged ends and black oxide finish.

Key Features

Set of 8 push rods, each 7.925 inches long and 3/8 inches in diameter.
Constructed from durable 4130 chrome moly steel with a .080-inch wall thickness.
Features precisely formed swedged ends with exact radii for proper valve train contact.
Maintains excellent concentricity and closely controlled lengths for consistent performance.
Includes a black oxide finish for corrosion resistance.

⚠️ 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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About this part

Product Details

If you're rebuilding the top end of your engine, getting the push rod length and diameter just right is critical for proper valve train geometry. These 7.925-inch long, 3/8-inch diameter push rods from Manley are made from 4130 chrome moly steel, a strong material that holds up well under the stress of engine operation. They feature a .080-inch wall thickness, which offers a good balance of strength and weight for most performance applications.

Manley paid close attention to the details with these push rods. The ends are meticulously formed with exact radii, and they maintain excellent concentricity and closely controlled lengths. This precision helps ensure consistent valve lift and timing. They also come with a black oxide finish, which offers some protection against corrosion and helps identify them as a quality aftermarket part.