What material are these pistons made from?

These Manley pistons are forged from 2618 alloy, a domestic material known for its strength and performance capabilities in demanding engine applications.

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. This design helps to generate substantial power while also being gentle on the cylinder walls, reducing wear.

Are these pistons compatible with all piston rings?

These pistons feature exacting ring lands and grooves, which are critical for proper ring seal. While they are designed for optimal performance with high-quality rings, it's always best to consult your engine builder or Manley's recommendations for compatible ring sets.

Specifications

Brand: Manley Performance
Part #: 697630-8
UPC: 807298067650

Manley Chevrolet Big Block Piston Set - 4.530in Bore 1.245in CH, 43.00 CC

Name: Manley Chevrolet Big Block Piston Set - 4.530in Bore 1.245in CH, 43.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-big-block-piston-set-4-530in-bore-1-245in-ch-t14-880364
Price: 1007.00 USD
Availability: BackOrder

$1007.00

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 forged piston set for 8cyl engines. Features 2618 alloy, chrome moly wrist pins, and cam/barrel skirt profiles.

Key Features

Fits Chevrolet big block engines with a 4.530 inch bore.
Features a 1.245 inch compression height and a 43.00 CC dish volume.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes premium chrome moly wrist pins for durability.
Piston ring lands and grooves are machined to exacting standards for enhanced ring seal.
Cam and barrel skirt profiles help generate power while minimizing cylinder wall wear.

This piston set is designed for Chevrolet big block 8-cylinder engines with a 4.530 inch bore. Please verify compatibility with your specific engine build.

⚠️ 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 building a high-performance Chevrolet big block engine, these Manley Performance pistons are a solid choice. This set is designed for a 4.530-inch bore and features a 1.245-inch compression height with a 43.00 CC dish volume. Manley is a well-known name among professional engine builders for a reason – their pistons are built to handle serious power and deliver consistent performance.

These pistons are forged from 2618 alloy, a material chosen for its strength and ability to withstand the high pressures and temperatures found in performance engines. They come standard with chrome moly wrist pins, which are strong and durable for most applications. Manley also pays close attention to the details, like the exacting standards for ring lands and grooves. This ensures a better seal with your piston rings, which translates directly to more power and better efficiency. The cam and barrel skirt profiles are designed to reduce friction and wear on your cylinder walls while still generating substantial power.

Manley's manufacturing process uses unique fixturing that allows them to machine the skirt and ring grooves in the same operation. This ensures the ring grooves are perfectly square to the piston skirt, which is critical for optimal ring seal and engine longevity. This set is not CARB approved and cannot be shipped to California. For serious engine builds, these pistons offer a well-built foundation for your project.