What is the compression ratio impact of the -6.5cc dish pistons?

The -6.5cc dish volume on these pistons will lower the static compression ratio compared to flat-top pistons. The exact impact depends on your cylinder head volume, head gasket thickness, and deck height. This dish is often used to achieve a desired compression ratio for forced induction applications or to prevent detonation with higher octane fuels.

What are the benefits of 2618 alloy forgings?

2618 alloy is a popular choice for performance pistons because it offers excellent strength and toughness. It has a higher expansion rate than some other alloys, which allows for tighter piston-to-wall clearances at operating temperature, contributing to reduced noise and improved ring seal.

Are these pistons compatible with all 4.6L/5.4L 3-valve engines?

These pistons are specifically designed for the 2005-2008 Ford Mustang 4.6L/5.4L 3-valve engine. While the engine family is shared across some Ford vehicles, always verify fitment for your specific application as bore size, dish volume, and wrist pin diameter can vary.

Specifications

Brand: Manley Performance
Part #: 594300C-8
UPC: 807298025421

Manley Ford 4.6L/5.4L (3Valve) 3.552 Bore -6.5cc Platinum Series Dish Piston Set

Name: Manley Ford 4.6L/5.4L (3Valve) 3.552 Bore -6.5cc Platinum Series Dish Piston Set
Brand: Manley Performance
SKU: manley-performance-manley-ford-4-6l-5-4l-3valve-3-552-bore-6-5cc-platinum-series-t14-260719
Price: 1018.11 USD
Availability: BackOrder

$1018.11

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Fits 2005-2008 Ford Mustang. Manley Platinum Series forged pistons for your 4.6L/5.4L 3-valve engine build.

Key Features

Fits 2005-2008 Ford Mustang.
Manley Platinum Series pistons are forged from domestic 2618 alloy for superior strength and performance.
Features a 3.552 inch bore size and a -6.5cc dish volume, suitable for specific compression ratio targets.
Includes premium tool steel wrist pins for added durability.
Piston skirt profiles are designed to generate power while minimizing cylinder wall wear.
Exacting standards for ring lands and grooves ensure enhanced ring seal and improved power output.

⚠️ 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 the engine in your 2005-2008 Ford Mustang, especially if you're aiming for more power or durability, a solid set of pistons is crucial. These Manley Platinum Series pistons are built for the Ford 4.6L and 5.4L 3-valve engines, featuring a 3.552-inch bore and a -6.5cc dish. They're designed to handle the demands of performance builds, whether you're adding forced induction or just looking for a stronger foundation for your engine.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their strength and ability to withstand higher temperatures and pressures compared to cast or hypereutectic pistons. The pistons come with tool steel wrist pins for added durability, and the skirt profiles are designed to be efficient for power generation while also being gentle on your cylinder walls. Manley also pays close attention to the ring lands and grooves, ensuring a tight seal for better compression and more power. Their unique machining process helps ensure the ring grooves are perfectly square to the piston skirt, which is key for proper ring seal.

This set includes pistons with a -6.5cc dish, which is important for setting your compression ratio depending on your cylinder head volume and head gasket thickness. Remember that these pistons are not CARB approved and cannot be shipped to California. If you're building a high-performance engine, these Manley pistons offer a well-built foundation.