What is the primary benefit of using 2618 alloy forgings for pistons?

The 2618 alloy is chosen for its superior strength and ability to perform under high temperatures and pressures. This makes it ideal for demanding engine builds where durability and consistent performance are critical.

What does the -20.00cc dish on the piston mean for my engine build?

The dish volume directly affects your engine's compression ratio. A -20.00cc dish will lower the compression ratio compared to a flat-top or domed piston, which is often necessary when using high-volume cylinder heads or specific camshafts to achieve a desired compression level.

Are these pistons compatible with all piston rings?

These pistons feature exacting ring lands and grooves designed for optimal ring seal. While they are designed to work with standard ring sets for their size, it's always best to confirm compatibility with the specific ring set you plan to use to ensure a proper fit and seal.

Specifications

Brand: Manley Performance
Part #: 696630-8
UPC: 807298028828

Manley Chevrolet Big Block Piston Set - 4.530in Bore 1.520in CH, -20.00 CC

Name: Manley Chevrolet Big Block Piston Set - 4.530in Bore 1.520in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-big-block-piston-set-4-530in-bore-1-520in-ch-t14-880324
Price: 975.27 USD
Availability: BackOrder

$975.27

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Chevrolet Big Block Piston Set - 4.530in Bore 1.520in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance in your big block build.

Key Features

Fits Chevrolet Big Block engines with a 4.530-inch bore.
Forged from strong 2618 alloy for superior strength and performance.
Features proven cam and barrel skirt profiles for smooth operation and power generation.
Precisely machined ring lands and grooves ensure enhanced ring seal.
Includes durable tool steel wrist pins.
Pistons have a -20.00cc dish, critical for setting compression ratio.

This piston set is designed for Chevrolet Big Block engines with a 4.530-inch bore. Please verify compatibility with your specific engine build and components.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

When you're rebuilding the top end of a Chevrolet big block engine and need pistons that can handle serious power, Manley's Platinum Series pistons are a solid choice. These aren't just off-the-shelf parts; they're built with the same attention to detail that professional engine builders rely on for high-performance applications. They are forged from a strong 2618 alloy, which is known for its ability to withstand high temperatures and pressures without deforming.

Manley uses proven cam and barrel skirt profiles on these pistons. This design helps them run smoothly against the cylinder walls, reducing friction and wear while still allowing them to generate substantial power. The ring lands and grooves are machined to very tight tolerances, which is crucial for getting a good seal from your piston rings. A good ring seal means better compression, more power, and less oil getting into the combustion chamber. These pistons also come with tool steel wrist pins for added durability, and the skirt turning and ring groove machining are done in a single operation to ensure everything is perfectly square.

This set is designed for a 4.530-inch bore and features a -20.00cc dish, which is important for achieving your target compression ratio depending on your cylinder heads and gasket choice. Because these are high-performance forged pistons, they are a significant upgrade over cast pistons and are built to last in demanding engine builds.