What is the compression ratio with these pistons?

These pistons feature an 18cc dome volume, which helps achieve a 10.2:1 compression ratio when used with a 4.310-inch bore and 4.250-inch stroke on a standard deck Big Block Chevy engine.

Are these pistons suitable for all Big Block Chevy engines?

This set is specifically designed for the 496 cubic inch Big Block Chevy with a standard deck height. It's important to confirm your engine's bore, stroke, rod length, and deck height match the specifications for proper fitment.

What is included in this piston set?

This is a set of eight forged pistons. It includes the pistons themselves and the .990-inch wrist pins. Piston rings and other necessary assembly components are typically sold separately.

Mahle BBC 496ci Piston Set 4.310in Bore 929907110

Name: Mahle MS Piston Set BBC 496ci 4.310in Bore 4.25in Stroke 6.385in Rod .990 Pin 18cc 10.2 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-t14-191515
Price: 971.65 USD
Availability: BackOrder

Mahle MS Piston Set BBC 496ci 4.310in Bore 4.25in Stroke 6.385in Rod .990 Pin 18cc 10.2 CR Set of 8

$971.65

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. 4.310in bore, 4.25in stroke, 10.2 CR. Set of 8.

Key Features

Fits Big Block Chevy 496 cu in engines.
Forged from 4032 aluminum for strength and durability.
Features an 18cc dome volume for a 10.2:1 compression ratio.
Designed for a 4.310-inch bore and 4.250-inch stroke.
Includes a .990-inch pin and fits a 6.385-inch connecting rod.
Each piston weighs 539 grams.

This piston set is designed for Big Block Chevy 496 cu in engines with a standard deck height. Please verify compatibility with your specific engine build.

⚠️ 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

Mahle is well-known for making solid engine components, and this piston set for a Big Block Chevy 496ci is no exception. If you're rebuilding or upgrading your big block, these pistons are built to handle the demands of a performance engine. They're designed for a standard deck height with a 4.310-inch bore and a 4.250-inch stroke, fitting a 6.385-inch connecting rod.

These pistons are forged from 4032 aluminum, a material chosen for its strength and ability to withstand high temperatures and pressures common in performance applications. They feature an 18cc dome volume, which helps achieve a 10.2:1 compression ratio with the specified bore and stroke. The included pin is .990 inches, a standard size for many performance builds. Each piston weighs in at 539 grams, contributing to a balanced rotating assembly. This set includes all eight pistons needed for a V8 engine.

Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are also subject to California's Prop 65 warning. For a complete build, ensure you have the correct supporting components like rings, bearings, and gaskets, and always refer to Mahle's installation guidelines for proper fitment and assembly.