What is the compression ratio achieved with these pistons?

These Mahle MS pistons feature a 43cc dome volume, which results in a 13.0:1 compression ratio when used with a Big Block Chevy 496ci engine with a 4.310-inch bore and 4.250-inch stroke.

Are these pistons suitable for all Big Block Chevy engines?

These pistons are specifically designed for 496 cubic inch Big Block Chevy engines with a standard deck height (9.800 inches). It's important to verify your engine's specifications to ensure proper fitment.

What material are these pistons made from?

The pistons are forged from 2618 aluminum alloy. This material is chosen for its strength and ability to withstand the high temperatures and pressures found in performance engines.

Mahle BBC 496ci Piston Set 4.310in Bore 929906710

Name: Mahle MS Piston Set BBC 496ci 4.310in Bore 4.25in Stroke 6.385in Rod .990 Pin 43cc 13.0 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-bbc-496ci-4-310in-bore-4-25in-stroke-6-385in-rod-990-p-t14-191520
Price: 998.57 USD
Availability: BackOrder

Mahle MS Piston Set BBC 496ci 4.310in Bore 4.25in Stroke 6.385in Rod .990 Pin 43cc 13.0 CR Set of 8

$998.57

On Backorder

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

Mahle MS Piston Set for BBC 496ci engines. Features 4.310in bore, 4.25in stroke, 6.385in rod, 0.990in pin, 43cc dome, 13.0 CR. Set of 8.

Key Features

This is a set of 8 Mahle MS forged pistons for Big Block Chevy 496ci engines.
Features a 4.310-inch bore and a 4.250-inch stroke.
Designed for a 6.385-inch connecting rod and uses a 0.990-inch wrist pin.
Constructed from 2618 aluminum alloy for strength and durability.
Each piston has a 43cc dome volume, achieving a 13.0:1 compression ratio.
Individual piston weight is approximately 596 grams.

⚠️ 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

These Mahle MS forged pistons are built for serious Big Block Chevy 496 cubic inch engines with a standard deck height. The 4.310-inch bore combined with a 4.250-inch stroke and a 6.385-inch connecting rod creates a robust foundation for high-performance builds. The 0.990-inch pin diameter is a common size for these applications, ensuring compatibility with many aftermarket connecting rods.

Crafted from 2618 aluminum alloy, these pistons are known for their strength and durability under extreme conditions. Each piston features a 43cc dome volume, which, when paired with the specified bore and stroke, results in a 13.0:1 compression ratio. This compression level is ideal for naturally aspirated engines seeking maximum power output, especially when used with high-octane fuel. Each piston weighs in at approximately 596 grams, contributing to a well-balanced rotating assembly.

This set includes eight pistons, all the necessary components for a complete engine rebuild. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to manufacturer installation instructions for proper fitment and assembly procedures.