What is the compression ratio achieved with this piston set?

This Mahle piston set is designed to achieve a 12.3:1 compression ratio. This is calculated based on the piston's -6.5cc dish volume, the 4.185-inch bore, and the 4.000-inch stroke.

What connecting rod length is recommended for this piston set?

This piston set is designed to be used with a 6.000-inch connecting rod. The 0.927-inch heavy-duty pins are also included to ensure proper connection.

Are these pistons legal for use in California?

No, this Mahle piston set is not CARB approved and cannot be shipped to California. Please check local regulations regarding emissions compliance for engine components.

Mahle 440ci Chevy SB Piston Set 930201285

Name: Mahle MS Piston Set Chevy SB 440ci 4.185in Bore 4.000in Stroke 6.0 Rod .927 HD Pin 9cc 12.4CR
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-chevy-sb-440ci-4-185in-bore-4-000in-stroke-6-0-rod-927-t14-162879
Price: 840.19 USD
Availability: BackOrder

Mahle MS Piston Set Chevy SB 440ci 4.185in Bore 4.000in Stroke 6.0 Rod .927 HD Pin 9cc 12.4CR

$840.19

On Backorder

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

Mahle forged piston set for Chevy SB 440ci engines. Features a 4.185" bore and 4.000" stroke for improved performance.

Key Features

Fits Chevrolet Small Block 440 cu in engines.
Forged from 2618 aluminum alloy for strength and durability.
Features a 4.185 inch bore and 4.000 inch stroke.
Designed for a 6.000 inch connecting rod.
Includes 0.927 inch heavy-duty pins.
Achieves a 12.3:1 compression ratio with a -6.5cc dish volume.

This piston set is designed for Chevrolet Small Block 440 cubic inch engines. Always verify compatibility with your specific engine configuration.

⚠️ 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

Forged from 2618 aluminum alloy, this Mahle MS Piston Set is built for demanding Chevy Small Block 440 cubic inch applications. The pistons feature a 4.185-inch bore and are designed to work with a 4.000-inch stroke and a 6.000-inch connecting rod, creating a robust 440ci displacement. This setup is engineered for a 12.3:1 compression ratio, which is ideal for maximizing power output in performance-oriented engines. The included 0.927-inch heavy-duty pins are designed to handle the stresses of high-performance use.

Each piston weighs in at 419 grams, contributing to a well-balanced rotating assembly. The dish volume is -6.5cc, which, combined with the bore and stroke, achieves the target compression ratio. Mahle is a well-known name in engine components, and this piston set reflects their commitment to producing reliable parts for serious engine builds. These pistons are a solid option if you're rebuilding or upgrading your Chevy SB engine and need components that can withstand higher cylinder pressures and temperatures.

Please note that this piston set is not CARB approved and cannot be shipped to California. It's important to ensure compatibility with your specific engine block, crankshaft, and connecting rods before installation. For optimal results and longevity, consult with a professional engine builder or refer to Mahle's installation guidelines.