What material are these Mahle pistons made from?

These Mahle MS pistons are forged from 2618 aluminum. This material is known for its strength and ability to withstand high temperatures and pressures common in performance engines.

What is the compression ratio achieved with these pistons?

With a -5.8cc dish volume and when used with appropriate cylinder heads, these pistons achieve a compression ratio of 11.4:1. This is suitable for many performance-oriented engine builds.

Are these pistons compatible with all GM LS engines?

This specific piston set is designed for GM LSX engines with a 428 cubic inch displacement and a 4.065 inch bore. It is crucial to verify your engine's exact specifications to ensure compatibility.

Mahle GM LSX 428cid Piston Set 930227265

Name: Mahle MS Piston Set GM LSX 428cid 4.065x1.050RCH 4.125 Stk 6.125 Rod .927 Pin -5.8cc 11.4CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-gm-lsx-428cid-4-065x1-050rch-4-125-stk-6-125-rod-927-p-t14-348876
Price: 859.74 USD
Availability: BackOrder

Mahle MS Piston Set GM LSX 428cid 4.065x1.050RCH 4.125 Stk 6.125 Rod .927 Pin -5.8cc 11.4CR 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 428cid engines. Features a 4.065in bore and 11.4:1 compression ratio for improved performance.

Key Features

Fits Chevrolet LS 428 cu in engines.
Forged from 2618 aluminum for strength and durability.
4.065 inch bore size.
Designed for a 4.125 inch stroke and 6.125 inch connecting rod.
Utilizes a .927 inch wrist pin.
-5.8cc piston dish volume.

This piston set is designed for Chevrolet LS engines with a 428 cubic inch displacement. Please verify your engine specifications before purchase.

⚠️ 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, particularly for their piston designs. This Mahle MS Piston Set is built for GM LSX engines displacing 428 cubic inches, offering a solid foundation for a performance build. If you're looking to rebuild the heart of your LS-based vehicle, these pistons are a key component to consider for improved power and efficiency.

These pistons are forged from 2618 aluminum, a strong material chosen for its durability under high stress, which is crucial for performance applications. They feature a 4.065-inch bore and are designed to work with a 4.125-inch stroke and a 6.125-inch connecting rod, using a .927-inch wrist pin. The dish volume is -5.8cc, resulting in a compression ratio of 11.4:1 when paired with the right cylinder heads. Each piston weighs 427 grams, contributing to a balanced rotating assembly. This set includes eight pistons, enough for a complete V8 engine.

Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For optimal performance and longevity, ensure proper installation according to Mahle's guidelines, which typically involves precise machining and assembly techniques for high-performance engines.