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 is often used in performance engine builds.

What does 'swedged end' mean for these push rods?

A swedged end means the tubing has been formed and reinforced at the end, creating a strong connection point. These ends are meticulously formed with exact radii for proper contact with other valve train components.

What is the purpose of the black oxide finish?

The black oxide finish provides improved durability and resistance to corrosion. It's a common treatment for engine components to help them withstand the harsh environment within the engine bay.

Specifications

Brand: Manley Performance
Part #: 25640-16
UPC: 807298031293

Manley Push Rod - 5/16 Dia. - 6.400 Length - 0.080 Wall - 4130 Chrome Moly - Swedged End - Set of 16

Name: Manley Push Rod - 5/16 Dia. - 6.400 Length - 0.080 Wall - 4130 Chrome Moly - Swedged End - Set of 16
Brand: Manley Performance
SKU: manley-performance-manley-push-rod-5-16-dia-6-400-length-0-080-wall-4130-chrome--t14-879700
Price: 261.22 USD
Availability: BackOrder

$261.22

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Manley Performance push rods, 5/16" diameter, 6.400" length, 0.080" wall. Set of 16.

Key Features

Fits: Engine Components > Push Rods
Constructed from 4130 chrome moly tubing for strength.
Features swedged ends with exact radii for precise valve train contact.
Maintains excellent concentricity and closely controlled length.
Heat treated and black oxide finished for improved durability.
Set includes 16 push rods.

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About this part

Product Details

Manley Performance push rods are a solid option for engine builds where precise valve train geometry is critical. These push rods measure 5/16 inches in diameter with a 0.080 inch wall thickness and a length of 6.400 inches. They are constructed from 4130 chrome moly tubing, a strong material often used in performance applications for its durability and resistance to bending under stress.

The ends of these push rods are meticulously formed with exact radii, and the overall concentricity is closely controlled to ensure consistent contact with the rocker arms and lifters. This attention to detail helps maintain accurate valve lift and timing. They are heat treated and finished with a black oxide coating for improved durability and corrosion resistance. This set includes 16 push rods, enough for a typical V8 engine.