What is the compression ratio achieved with these pistons?

These Mahle MS pistons feature a -5cc dish volume. When used with appropriate cylinder heads and gasket thickness, they are designed to achieve a 11.1:1 compression ratio for your 383ci engine.

What material are these pistons made from?

The pistons are constructed from 4032 aluminum. This alloy is chosen for its good thermal expansion characteristics, making it well-suited for performance engine builds that require durability and reliability.

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 SBC 383ci Piston Set 4.030in Bore 930200130

Name: Mahle MS Piston Set SBC 383ci 4.030in Bore 3.750in Stroke 5.7in Rod .927 Pin -5cc 11.1 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-sbc-383ci-4-030in-bore-3-750in-stroke-5-7in-rod-927-pi-t14-29396
Price: 783.94 USD
Availability: BackOrder

Mahle MS Piston Set SBC 383ci 4.030in Bore 3.750in Stroke 5.7in Rod .927 Pin -5cc 11.1 CR Set of 8

$783.94

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 SBC 383ci engines. 4.030in bore, 3.750in stroke, 5.7in rod, -5cc dish, 11.1 CR. Set of 8.

Key Features

Fits Chevrolet Small Block 383 cu in engines.
4.030 inch bore size.
3.750 inch stroke compatibility.
Designed for 5.700 inch connecting rods.
.927 inch wrist pin diameter.
-5cc piston dish volume.

This piston set is designed for Chevrolet Small Block 383 cubic inch engines. Please verify compatibility with your specific 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

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Product Details

If you're building a high-performance Small Block Chevrolet, this Mahle MS Piston Set is designed for your 383 cubic inch engine. These pistons are crafted to work with a 4.030-inch bore and a 3.750-inch stroke, utilizing a 5.700-inch connecting rod and a .927-inch wrist pin. Mahle has engineered these pistons with a -5cc dish volume, which helps achieve a compression ratio of 11.1:1 when paired with the right cylinder heads and gasket combination.

Constructed from 4032 aluminum, these pistons are well-built for demanding applications where strength and reliability are crucial. The 4032 alloy offers good thermal expansion properties, making it suitable for performance street and strip engines. Each piston weighs approximately 460 grams, contributing to a balanced rotating assembly. This set includes eight pistons, providing everything you need for a complete engine build.

It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed specifications and installation instructions to ensure proper fitment and performance in your specific engine build.