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

The 2618 alloy is chosen for its superior strength and performance characteristics. This material is well-suited to handle the high stresses and temperatures found in performance LS engine builds, contributing to overall durability.

What is the purpose of the cam and barrel skirt profiles on these pistons?

These specific skirt profiles are designed to minimize friction and wear against the cylinder walls. While reducing drag, they still allow the piston to generate substantial power, contributing to an efficient and powerful engine.

Are these pistons compatible with all LS engine builds?

These pistons are specifically designed for Chevrolet LS engines with a 4.135-inch bore and a -20.00cc dish. Compatibility also depends on your chosen crankshaft and connecting rods to achieve the desired compression ratio and deck height. They are not CARB approved and cannot be shipped to California.

Specifications

Brand: Manley Performance
Part #: 566410C-8
UPC: 807298103488

Manley Chevrolet LS Piston Set - 4.135in Bore 1.065in CH, -20.00 CC

Name: Manley Chevrolet LS Piston Set - 4.135in Bore 1.065in CH, -20.00 CC
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-piston-set-4-135in-bore-1-065in-ch-20-00--t14-880476
Price: 1093.44 USD
Availability: BackOrder

$1093.44

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Manley Chevrolet LS Piston Set - 4.135in Bore 1.065in CH, -20.00 CC. Forged from 2618 alloy for superior strength and durability in high-performance builds.

Key Features

Fits Chevrolet LS engines with a 4.135 inch bore.
Forged from domestic 2618 alloy for superior strength and performance.
Features a -20.00cc dish volume and 1.065 inch compression height.
Includes premium chrome moly wrist pins for added durability.
Exacting standards for ring lands and grooves enhance ring seal and power.
Cam and barrel skirt profiles reduce friction and wear on cylinder walls.

This piston set is designed for Chevrolet LS engines. Specific fitment details, including compatible crankshafts and connecting rods, should be verified with the manufacturer's specifications.

⚠️ 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 LS engine, this Manley Performance piston set is a solid choice. These pistons are forged from a domestic 2618 alloy, which is known for its strength and ability to handle the stresses of performance applications. The 4.135-inch bore size and -20.00cc dish volume are specific to certain LS engine configurations, and the 1.065-inch compression height is crucial for achieving the correct deck height and compression ratio with your chosen crankshaft and connecting rods.

Manley puts a lot of thought into the details that make a difference. The cam and barrel skirt profiles are designed to reduce friction and wear on your cylinder walls while still generating substantial power. They also pay close attention to the ring lands and grooves, machining them to exacting standards to ensure a tight seal with your piston rings. This improved ring seal is key to maximizing compression and getting the most power out of your engine. For added durability, these pistons come with premium chrome moly wrist pins, and Manley's unique fixturing process ensures the ring grooves are perfectly square to the piston skirt, which is vital for consistent performance.

This set includes pistons designed for an 8-cylinder engine, and they are a popular choice among professional engine builders and tuners who rely on Manley for dependable performance. Keep in mind 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, especially when dealing with critical components like pistons.