What material are these Manley pistons made from?

These pistons are forged from domestic 2618 alloy. This material is chosen for its superior strength and reliability under high-performance engine conditions.

What is the purpose of the -20cc dish in these pistons?

The -20cc dish is a specific volume designed into the piston crown. It helps to lower the compression ratio of your engine, which is often necessary when using a longer stroke crankshaft or for forced induction applications.

Are these pistons compatible with all LT1 engines?

These pistons are specifically designed for Chevy LT1 engines with direct injection, a 4.070-inch bore, and a 4.00-inch stroke. They are not CARB approved and cannot be shipped to California.

Specifications

Brand: Manley Performance
Part #: 560470CE-8
UPC: 807298096650

Manley Chevy LT1 Direct Injected Series 4.00in Stroke 4.070in Bore -20 cc Dish Extreme Duty Pistons

Name: Manley Chevy LT1 Direct Injected Series 4.00in Stroke 4.070in Bore -20 cc Dish Extreme Duty Pistons
Brand: Manley Performance
SKU: manley-performance-manley-chevy-lt1-direct-injected-series-4-00in-stroke-4-070in-t14-25438
Price: 1269.53 USD
Availability: BackOrder

$1269.53

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 4.00in Stroke 4.070in Bore -20 cc Dish Extreme Duty Pistons. Forged from 2618 alloy for superior strength.

Key Features

Fits Chevy LT1 Direct Injected engines with a 4.070-inch bore and 4.00-inch stroke.
Features a -20cc dish to help achieve your desired compression ratio.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes premium chrome moly wrist pins for added durability.
Precision-machined ring lands and grooves ensure enhanced ring seal and power.
Utilizes cam and barrel skirt profiles designed for power generation and reduced cylinder wall wear.

These pistons are designed for Chevy LT1 engines with a 4.070-inch bore and 4.00-inch stroke. Not CARB approved and cannot be shipped to California.

⚠️ 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 Chevy LT1 engine, especially one with direct injection, these Manley Extreme Duty Pistons are a solid choice. They're designed for a 4.070-inch bore and a 4.00-inch stroke, with a -20cc dish that helps set your compression ratio. Manley is a well-known name in serious engine building, and these pistons are made to handle the demands of powerful builds.

What sets these pistons apart is the material and construction. They start with domestic 2618 alloy forgings, which are known for being strong and reliable under high stress. You also get premium chrome moly wrist pins included, and Manley pays close attention to the ring lands and grooves. This precision ensures a better seal for your piston rings, which means more consistent power and better durability for your engine. They also use specific cam and barrel skirt profiles that are designed to reduce friction and wear on your cylinder walls while still generating good power.

These pistons are part of Manley's signature Platinum Series, which means they're built with the kind of attention to detail that professional engine builders trust. The unique fixturing Manley uses allows them to machine the skirt and ring grooves in one operation, ensuring they are perfectly square to each other. This level of precision is crucial for optimal engine performance and longevity. Keep in mind that these pistons are not CARB approved and cannot be shipped to California.