What is the primary benefit of using forged pistons like these?

Forged pistons are significantly stronger and more durable than cast pistons. This makes them ideal for high-performance engines that experience higher cylinder pressures and temperatures, such as those with forced induction or high compression ratios.

What does the -4.00cc dish volume mean for my engine build?

The dish volume affects your engine's compression ratio. A negative CC value, like -4.00cc, indicates a dish in the piston top. This is typically used to lower the compression ratio, which is often desired for forced induction applications (turbochargers or superchargers) or certain naturally aspirated builds.

Are these pistons compatible with all LS engine blocks?

These pistons are designed for LS engines with a 4.080 inch bore. While this is a common bore size for many LS applications, it's crucial to confirm that your specific LS engine block and intended build can accommodate this bore size and the associated components.

Specifications

Brand: Manley Performance
Part #: 592580C-8
UPC: 807298101309

Manley Chevrolet LS Piston Set - 4.080in Bore 1.304in CH, -4.00 CC

Name: Manley Chevrolet LS Piston Set - 4.080in Bore 1.304in CH, -4.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-080in-bore-1-304in-ch-4-00-c-t14-880630
Price: 1004.51 USD
Availability: BackOrder

$1004.51

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

Manley Chevrolet LS Piston Set - 4.080in Bore 1.304in CH, -4.00 CC. Forged from 2618 alloy for superior strength and performance in high-output LS engines.

Key Features

Fits Chevrolet LS engines with a 4.080 inch bore.
Forged from domestic 2618 alloy for superior strength and durability.
Features proven cam and barrel skirt profiles for quiet operation and good cylinder seal.
Exacting ring lands and grooves are machined to strict standards for enhanced ring seal and power.
Includes premium chrome moly wrist pins.
Unique fixturing ensures ultimate ring groove to skirt squareness.

This piston set is designed for Chevrolet LS engines with a 4.080 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 rebuilding or upgrading a Chevrolet LS engine, this Manley Performance piston set is built for serious power. These are forged pistons, meaning they start as a solid block of aluminum that's heated and then pressed into shape. This process creates a much stronger and more durable piston than cast aluminum, which is essential when you're pushing an engine hard. The 4.080-inch bore size is a common upgrade for LS engines, and the -4.00cc dish volume is designed to work with specific compression ratios, typically for forced induction or high-performance naturally aspirated builds.

Manley uses domestic 2618 alloy forgings, which is a well-known material for its strength and ability to handle high temperatures and pressures without deforming. You'll also find proven cam and barrel skirt profiles on these pistons. This design helps them run true and quiet in the cylinder bore, reducing wear and noise while still allowing for excellent ring seal. Speaking of rings, Manley pays close attention to the ring lands and grooves, machining them to tight tolerances. This ensures your piston rings seal effectively against the cylinder wall, which is critical for making good power and preventing blow-by.

Included with this set are premium chrome moly wrist pins, which are strong enough for many performance applications. For those building extreme power, Manley also offers upgraded wrist pin options. The unique fixturing Manley uses allows them to machine the skirt and the ring grooves in the same operation. This ensures the ring grooves are perfectly square to the piston skirt, which further improves ring seal and overall engine performance. Keep in mind these pistons are not CARB approved and cannot be shipped to California.