What material are these pistons made from and why is it important?

These pistons are forged from a domestic 2618 alloy. This material is chosen for its superior strength and ability to perform reliably under the high temperatures and pressures found in performance big block engines.

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 bore. This design helps to reduce friction and wear on the cylinder walls while still allowing the piston to generate substantial power.

Are these pistons compatible with all Chevrolet big block engines?

This specific piston set is designed for a 4.560 inch bore size common in many Chevrolet big block applications. It is crucial to verify this bore size and the piston's dish volume (-20.00cc) against your engine's specific requirements and desired compression ratio before installation.

Specifications

Brand: Manley Performance
Part #: 696660-8
UPC: 807298028842

Manley Chevrolet Big Block Piston Set - 4.560in Bore 1.520in CH, -20.00 CC

Name: Manley Chevrolet Big Block Piston Set - 4.560in Bore 1.520in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-big-block-piston-set-4-560in-bore-1-520in-ch-t14-880325
Price: 975.27 USD
Availability: BackOrder

$975.27

On Backorder

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Manley Chevrolet Big Block Piston Set - 4.560in Bore 1.520in CH, -20.00 CC. Built with 2618 alloy forgings for superior strength and performance.

Key Features

Fits Chevrolet Big Block engines with a 4.560 inch bore.
Features a -20.00cc dish for specific compression ratio tuning.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes tool steel wrist pins for added durability.
Boasts proven cam and barrel skirt profiles that reduce cylinder wall wear.
Exacting ring lands and grooves ensure enhanced ring seal and more power.

This piston set is designed for Chevrolet Big Block engines with a 4.560 inch bore. Please consult your engine build specifications to confirm compatibility.

⚠️ 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

When you're rebuilding the heart of your Chevrolet big block, choosing the right pistons is critical for achieving the performance and durability you're after. These Manley "Platinum Series" pistons are built for serious engine work, designed to handle the demands of high-performance builds where reliability is just as important as power. They feature a 4.560-inch bore and a -20.00cc dish, making them suitable for specific compression ratio targets in your engine build.

Manley uses domestic 2618 alloy forgings for these pistons, which is known for its strength and ability to withstand high temperatures and pressures. The pistons also feature proven cam and barrel skirt profiles, which help them run smoothly against the cylinder walls, reducing wear and noise while still generating substantial power. You'll also find exacting standards in the ring lands and grooves, ensuring a tight seal for better combustion efficiency and more power output. For added durability, these pistons come with tool steel wrist pins, and Manley's unique fixturing process ensures the ring grooves are perfectly square to the skirt, which is key for proper ring seal.

These pistons are a solid choice for professional engine builders and tuners looking for reliable components for their high-performance Chevrolet big block engines. Keep in mind that these are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly details.