What is the compression ratio with these pistons?

These pistons feature a -5.8cc dish volume. When used with the appropriate cylinder heads and gasket combination for a 418 cubic inch LSX engine, they are designed to achieve an 11.2:1 compression ratio.

What material are these pistons made from?

The pistons are constructed from 2618 aluminum. This material is chosen for its strength and ability to handle the high temperatures and pressures found in performance engine builds.

Are these pistons legal for use in California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle GM LSX 418cid Piston Set 930227580

Name: Mahle MS Piston Set GM LSX 418cid 4.080x1.110RCH 4.000 Stk 6.125 Rod .927 Pin -5.8cc 11.2CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-gm-lsx-418cid-4-080x1-110rch-4-000-stk-6-125-rod-927-p-t14-348868
Price: 859.74 USD
Availability: BackOrder

Mahle MS Piston Set GM LSX 418cid 4.080x1.110RCH 4.000 Stk 6.125 Rod .927 Pin -5.8cc 11.2CR Set of 8

$859.74

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 GM LSX 418cid engines. Features 4.080 bore, 4.000 stroke, 11.2 CR. Not CARB approved.

Key Features

Fits Chevrolet LS 418 cu in engines.
Mahle MS Piston Set for GM LSX applications.
Features a 4.080-inch bore and 4.000-inch stroke compatibility.
Designed for a 6.125-inch rod and 0.927-inch pin.
Includes a -5.8cc dish volume for an 11.2:1 compression ratio.
Constructed from strong 2618 aluminum.

This piston set is designed for Chevrolet LS 418 cubic inch engines. Always confirm 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 a well-known name in engine components, recognized for their expertise in piston technology. This Mahle MS Piston Set is built for GM LSX 418 cubic inch engines, a popular choice for performance builds. If you're assembling or rebuilding a high-performance LSX engine, these pistons are designed to handle the demands of increased power and stress.

This set features a 4.080-inch bore and is designed to work with a 4.000-inch stroke and a 6.125-inch rod, utilizing a 0.927-inch pin. The pistons have a -5.8cc dish volume, contributing to an 11.2:1 compression ratio with the specified components. They are constructed from 2618 aluminum, a material known for its strength and ability to withstand high temperatures and pressures, making them suitable for boosted or naturally aspirated performance applications. Each piston weighs in at 443 grams, helping to maintain proper engine balance.

This set includes eight pistons, providing a complete solution for your V8 engine. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and the manufacturer's installation instructions for proper assembly and tuning.