What is the purpose of the -12cc dish in these pistons?

The -12cc dish is a feature that helps determine your engine's final compression ratio. When paired with specific cylinder heads and a camshaft, it allows builders to achieve a target compression for their performance goals.

Are these pistons suitable for a stock engine rebuild?

These are performance pistons forged from 2618 alloy, designed for high-output builds. While they can be used in a rebuild, they are intended for engines that will be pushed beyond stock performance levels and may require other supporting modifications.

What is the benefit of the cam and barrel skirt profiles?

These profiles are engineered to optimize piston movement within the cylinder. They help reduce friction and wear on the cylinder walls while also contributing to efficient combustion and power generation.

Specifications

Brand: Manley Performance
Part #: 560175C-8
UPC: 807298102610

Manley Chevy LT1 Direct Injected Series 4.075in Bore -12 cc Dish Platinum Series Pistons

Name: Manley Chevy LT1 Direct Injected Series 4.075in Bore -12 cc Dish Platinum Series Pistons
Brand: Manley Performance
SKU: manley-performance-manley-chevy-lt1-direct-injected-series-4-075in-bore-12-cc-di-t14-427021
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 Chevy LT1 Direct Injected Series 4.075in Bore -12 cc Dish Platinum Series Pistons. Built for high-performance builds.

Key Features

Fits Chevy LT1 Direct Injected engines.
Forged from domestic 2618 alloy for superior strength.
Features proven cam and barrel skirt profiles for power and cylinder wall protection.
Exacting standards for ring lands and grooves enhance ring seal and power.
Includes premium Chrome Moly wrist pins for durability.
4.075 inch bore size with a -12cc dish.

These pistons are designed for Chevy LT1 Direct Injected engines. Please verify compatibility with your specific engine build and components.

⚠️ 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

Manley Performance is well-known for making strong engine components that professional builders trust. This set of Platinum Series pistons is a prime example, designed specifically for Chevy LT1 engines with direct injection. If you're building a high-performance LT1, these pistons are a solid choice to form the foundation of your engine's rotating assembly.

These pistons are forged from domestic 2618 alloy, a material chosen for its exceptional strength and ability to handle the demands of performance engines. They feature proven cam and barrel skirt profiles, which help generate power while also being kind to your cylinder walls, reducing wear over time. Manley also pays close attention to the details that matter for sealing: their ring lands and grooves are machined to exacting standards, which is crucial for getting a good seal from your piston rings and maximizing power output. The included wrist pins are made from premium Chrome Moly steel for durability.

For those pushing the limits, Manley's unique fixturing process ensures the ring grooves are perfectly square to the piston skirt, a detail that contributes to overall engine health and performance. This set has a 4.075-inch bore and a -12cc dish, which is important for achieving your desired compression ratio with your specific cylinder heads and camshaft. Keep in mind these pistons are not CARB approved and cannot be shipped to California.