What is the purpose of the -20.00cc dish on these pistons?

The dish volume on a piston affects the combustion chamber's final volume. A negative CC value, like the -20.00cc dish on these pistons, is used to lower the compression ratio, which is often necessary for forced induction (turbocharged or supercharged) applications or when using very thick head gaskets.

What are the benefits of using 2618 alloy forgings?

2618 alloy is a high-strength aluminum alloy commonly used in performance pistons. It offers excellent toughness and ductility, allowing it to withstand high cylinder pressures and temperatures without deforming, making it ideal for demanding engine builds.

Are these pistons compatible with all LS engine blocks?

These pistons are designed for LS engines with a 4.075 inch bore. While they are compatible with many LS blocks, it's essential to confirm that this bore size and the 1.065 inch compression height meet the specific requirements of your engine build, including piston-to-valve clearance with your chosen camshaft and cylinder heads.

Specifications

Brand: Manley Performance
Part #: 596075C-8
UPC: 807298101866

Manley Chevrolet LS Piston Set - 4.075in Bore 1.065in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.075in Bore 1.065in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-075in-bore-1-065in-ch-20-00--t14-880516
Price: 1004.51 USD
Availability: BackOrder

$1004.51

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 LS Piston Set - 4.075in Bore 1.065in CH, -20.00 CC. Forged from 2618 alloy for superior strength and performance in your LS engine.

Key Features

Fits Chevrolet LS engines with a 4.075 inch bore.
Features a -20.00cc dish volume for setting compression ratio.
Has a 1.065 inch compression height, important for deck height and valve clearance.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes tool steel wrist pins for added durability.
Exacting ring lands and grooves ensure enhanced ring seal and more power.

This piston set is designed for Chevrolet LS engines. Please verify bore size and compression height requirements for your specific application.

⚠️ 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

If you're building a high-performance Chevrolet LS engine, this Manley Performance Piston Set is a solid choice for serious power. These pistons are designed for a 4.075-inch bore and feature a -20.00cc dish, which is crucial for setting your compression ratio. The 1.065-inch compression height is also a key measurement for piston-to-valve clearance and deck height, especially when working with specific camshafts and cylinder heads.

Manley uses domestic 2618 alloy forgings for these pistons, a material known for its exceptional strength and ability to handle high cylinder pressures and temperatures. This makes them well-suited for boosted applications or high-compression naturally aspirated builds. The pistons also feature proven cam and barrel skirt profiles, which help them run true and minimize friction against the cylinder walls, contributing to both power and longevity. You'll also find exacting standards in the ring lands and grooves, ensuring a tight seal for better combustion efficiency and more power. For added durability, these pistons come with tool steel wrist pins, and some select Manley part numbers even offer upgrades to even tougher alloys like 9310 or Turbo Tuff/DLC.

Manley's unique manufacturing process allows them to machine the skirt and ring grooves in a single operation. This ensures the ring grooves are perfectly square to the piston skirt, which is vital for optimal ring seal and preventing blow-by. These pistons are a popular choice among professional engine builders and tuners who demand reliable performance from their LS engines.