What is included in this piston set?

This set includes eight Mahle MS forged pistons. Each piston is designed for a specific bore size, stroke, rod length, and wrist pin diameter, and includes valve reliefs to achieve a target compression ratio.

What material are these pistons made from and why is it important?

These pistons are made from 4032 aluminum. This alloy is chosen for its strength and favorable thermal expansion characteristics, which allow for tighter piston-to-wall clearance at operating temperatures, leading to quieter operation and improved ring seal compared to other aluminum alloys.

Can this piston set be shipped to California?

No, this piston set is not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle BBM Piston Set 4.350in Bore 929962650

Name: Mahle MS Piston Set BBM 493ci 4.350in Bore 4.15in Stroke 6.76in Rod 0.990 Pin -8cc 11.3 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-bbm-493ci-4-350in-bore-4-15in-stroke-6-76in-rod-0-990--t14-191487
Price: 886.31 USD
Availability: BackOrder

Mahle MS Piston Set BBM 493ci 4.350in Bore 4.15in Stroke 6.76in Rod 0.990 Pin -8cc 11.3 CR Set of 8

$886.31

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle BBM 493ci forged piston set for Chrysler Big Block. 4.350in bore, 11.3 CR. Set of 8.

Key Features

This product is a set of 8 Mahle MS forged pistons.
Designed for a 493 cubic inch Chrysler Big Block engine.
Features a 4.350-inch bore size.
Built for a 4.150-inch stroke and 6.760-inch connecting rod.
Utilizes a 0.990-inch wrist pin.
Includes -8.1cc valve reliefs for a 11.3:1 compression ratio.

This piston set is designed for Chrysler Big Block 493 cubic inch engines. It is 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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Product Details

This set includes eight Mahle MS forged pistons, designed for a 493 cubic inch Chrysler Big Block engine. Each piston features a 4.350-inch bore and is built to work with a 4.150-inch stroke and a 6.760-inch connecting rod, utilizing a 0.990-inch wrist pin. These pistons are crafted from 4032 aluminum, a material known for its strength and thermal expansion properties, making it a solid choice for high-performance builds.

With a -8.1cc valve relief, these pistons achieve a compression ratio of 11.3:1, which is a notable bump over stock and suitable for many performance applications. Each piston weighs approximately 580 grams, contributing to a well-balanced rotating assembly. The 4032 aluminum construction offers improved piston-to-wall clearance at operating temperature compared to older 2618 alloys, leading to quieter operation and better ring seal. This makes them a popular choice for engine builders looking for a durable and reliable piston for street or strip use.

It's important to note that this piston set is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for proper fitment and assembly, especially concerning ring installation, pin fitting, and cylinder wall preparation to ensure optimal performance and longevity of your engine build.