What is the compression ratio achieved with these pistons?

These pistons have a -20cc dish volume. When used with appropriate cylinder heads and a gasket, they are designed to achieve a 9.7:1 compression ratio.

What materials are these pistons made from?

The pistons are constructed from 2618 aluminum, a strong and heat-resistant alloy commonly used in high-performance engine components.

Can these pistons be shipped to California?

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

Mahle LSX Forged Piston Set 4.010in Bore 930230010

Name: Mahle MS Pistons LSX 417cid 4.010in Bore 4.125in Stk 6.125in Rod .927 Pin -20cc Dish 9.7CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-pistons-lsx-417cid-4-010in-bore-4-125in-stk-6-125in-rod-927-pin-2-t14-402583
Price: 912.97 USD
Availability: BackOrder

Mahle MS Pistons LSX 417cid 4.010in Bore 4.125in Stk 6.125in Rod .927 Pin -20cc Dish 9.7CR Set of 8

$912.97

On Backorder

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

Mahle LSX forged piston set for 417 cu in LS engines. Includes 8 pistons.

Key Features

Fits Chevrolet LS 417 cu in engines.
Set includes 8 forged pistons.
4.010 inch bore size.
Designed for a 4.125 inch stroke and 6.125 inch connecting rod.
-20cc dish volume for a 9.7:1 compression ratio.
Constructed from 2618 aluminum for strength.

This piston set is designed for Chevrolet LS engines with a 417 cubic inch displacement. 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 set of LSX pistons is a prime example of their work. If you're building a high-performance LS engine, especially a 417 cubic inch stroker, these pistons are designed to handle the demands. They feature a 4.010-inch bore and are built to work with a 4.125-inch stroke crankshaft and a 6.125-inch connecting rod, using a .927-inch wrist pin.

These pistons have a -20cc dish volume, which helps achieve a 9.7:1 compression ratio when paired with the right cylinder heads and gasket combination. This compression level is a popular choice for naturally aspirated builds aiming for a good balance of power and pump gas drivability. They are constructed from 2618 aluminum, a material chosen for its strength and ability to withstand high temperatures and pressures common in performance applications. Each piston weighs in at 392 grams, contributing to a well-balanced rotating assembly.

This set includes eight pistons, providing everything you need for a complete V8 engine rebuild. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.