What material are these pistons made from?

These Manley pistons are forged from domestic 2618 alloy. This material is chosen for its superior strength and performance characteristics, making it well-suited for demanding engine builds.

What is the purpose of the cam and barrel skirt profiles?

The cam and barrel profiles on the piston skirts are designed to optimize the piston's movement within the cylinder. They help generate substantial power while also reducing wear and stress on the cylinder walls.

Are these pistons suitable for all Chevrolet big block engines?

These pistons are specifically designed for Chevrolet big block engines with a 4.600-inch bore. It's important to verify that this bore size and the -20.00cc dish volume align with your engine's specific build requirements and desired compression ratio.

Specifications

Brand: Manley Performance
Part #: 696680-8
UPC: 807298028866

Manley Chevrolet Big Block Piston Set - 4.600in Bore 1.520in CH, -20.00 CC

Name: Manley Chevrolet Big Block Piston Set - 4.600in Bore 1.520in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-big-block-piston-set-4-600in-bore-1-520in-ch-t14-880326
Price: 975.27 USD
Availability: BackOrder

$975.27

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Manley Chevrolet Big Block Piston Set - 4.600in Bore 1.520in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance.

Key Features

Fits Chevrolet Big Block engines with a 4.600-inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features proven cam and barrel skirt profiles that help generate power while protecting cylinder walls.
Ring lands and grooves are machined to strict standards for enhanced ring seal and improved power output.
Includes tool steel wrist pins for added durability.
Piston dish volume is -20.00cc, which affects the final compression ratio.

⚠️ 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

Built with domestic 2618 alloy forgings, these Manley pistons are a solid choice for anyone looking to build or rebuild a Chevrolet big block engine. The 4.600-inch bore size and -20.00cc dish volume are specific dimensions to consider for your build's compression ratio. Manley uses proven cam and barrel skirt profiles, which are designed to generate significant power while also being kind to your cylinder walls during operation.

You'll find that Manley pays close attention to the details that matter for engine longevity and performance. The ring lands and grooves are machined to strict standards, which helps ensure a better seal from your piston rings, ultimately leading to more power. They also employ unique fixturing that allows them to machine the skirt and cut the ring grooves in one setup. This ensures the ring grooves are perfectly square to the piston skirt, a critical detail for proper ring function and sealing.

These pistons come standard with tool steel wrist pins, known for their strength and durability. For those seeking even more robustness, Manley offers upgrades to 9310 and Turbo Tuff/DLC alloys on select part numbers. This set is a popular choice among professional engine builders and tuners who depend on Manley pistons for high-performance applications.