What material are these pistons made from?

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

What is included in this piston set?

This set includes eight forged pistons. Each piston features a 4.030-inch bore, a 1.125-inch compression height, and a -2.50cc dish. Tool steel wrist pins are also included with this set.

Are these pistons legal for use in California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 591230-8
UPC: 807298026077

Manley Chevrolet Small Block Piston Set - 4.030in Bore 1.125in CH, -2.50 CC

Name: Manley Chevrolet Small Block Piston Set - 4.030in Bore 1.125in CH, -2.50 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-small-block-piston-set-4-030in-bore-1-125in--t14-880252
Price: 922.62 USD
Availability: BackOrder

$922.62

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 Small Block Piston Set - 4.030in Bore 1.125in CH, -2.50 CC. Forged from 2618 alloy for superior strength and durability in performance builds.

Key Features

This product is a set of eight forged pistons for Chevrolet small block engines.
Each piston has a 4.030-inch bore size.
The compression height for each piston is 1.125 inches.
Features a -2.50cc dish volume.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes tool steel wrist pins.

This piston set is designed for Chevrolet small block engines with a 4.030-inch bore. Always consult manufacturer specifications to confirm 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

This set includes eight forged pistons designed for Chevrolet small block engines. Each piston features a 4.030-inch bore size, a 1.125-inch compression height, and a -2.50cc dish volume. These pistons are built using Manley's signature 2618 alloy forgings, a material known for its exceptional strength and performance under demanding conditions. They come equipped with tool steel wrist pins, and many part numbers also include a moly skirt coating to reduce friction and wear.

Manley's design incorporates proven cam and barrel skirt profiles, which help generate significant power while also being gentle on your cylinder walls. The ring lands and grooves are machined to exacting standards, ensuring a better ring seal for improved power output. A unique fixturing process allows for skirt turning and ring groove machining in a single operation, which guarantees ultimate squareness between the ring groove and the skirt. These features combine to make Manley pistons a popular choice among professional engine builders and tuners looking for reliable performance and durability.

It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.