What is the compression ratio with these pistons?

These Mahle MS pistons are designed to achieve a 10.4:1 compression ratio when used with cylinder heads that have a -5.8cc dish volume. It's important to match them with appropriate heads for your desired build.

What material are these pistons made from?

The pistons are constructed from 4032 aluminum. This material is chosen for its strength and thermal expansion properties, making it suitable for high-performance engine applications.

Are these pistons compatible with all LS engines?

This specific set is designed for the 364 cubic inch GM LS engine platform. While many LS engines share commonalities, it's crucial to confirm that your engine's bore, stroke, and component dimensions match the specifications of this piston set.

Mahle GM LS Piston Set 4.000in Bore 930227700

Name: Mahle MS Piston Set GM LS 364ci 4.000in Bore 3.622in Stk 6.098in Rod .945 Pin -5.8cc Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-gm-ls-364ci-4-000in-bore-3-622in-stk-6-098in-rod-945-p-t14-710058
Price: 907.99 USD
Availability: BackOrder

Mahle MS Piston Set GM LS 364ci 4.000in Bore 3.622in Stk 6.098in Rod .945 Pin -5.8cc Set of 8

$907.99

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 LS 364ci engines. 4.000in bore, 3.622in stroke, 6.098in rod, .945in pin. Set of 8.

Key Features

Fits Chevrolet LS 364 cu in engines.
Set includes 8 pistons.
4.000 inch bore size.
3.622 inch stroke.
6.098 inch connecting rod length.
.945 inch wrist pin diameter.

This piston set is designed for Chevrolet LS 364 cu in engines. Please verify compatibility with your specific vehicle's engine configuration.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Product Details

Mahle is a well-known name in engine components, and their MS Piston Set is built for serious performance builds on GM LS engines. This set is specifically designed for the 364 cubic inch LS platform, offering a 4.000-inch bore and a 3.622-inch stroke. These pistons are crafted from 4032 aluminum, a material chosen for its strength and ability to handle the stresses of high-performance applications while maintaining good thermal expansion properties. The compression height is 1.330 inches, and they are designed to work with a 6.098-inch connecting rod and a .945-inch wrist pin, contributing to a calculated compression ratio of 10.4:1 with the specified chamber volume. Each piston weighs in at 427 grams, which is a good balance for durability and rotational mass in a performance engine.

This set includes eight pistons, ensuring you have everything needed for a complete engine rebuild. The dish volume is -5.8cc, which is a key factor in achieving the target compression ratio when paired with the correct cylinder heads. Mahle's attention to detail in the material selection and design means these pistons are well-built to withstand the demands of powerful LS engines. They are a solid option if you're looking to rebuild or upgrade the heart of your GM LS-powered vehicle and need reliable, high-performance internal components.

Please note that this piston set is not CARB approved and cannot be shipped to California. It also carries a Prop 65 warning. Always refer to manufacturer installation instructions for proper fitment and assembly procedures when working with performance engine components.