What is the compression ratio achieved with these pistons?

These Mahle pistons are designed to achieve a 10.4:1 compression ratio. This is calculated using the piston's -5cc dish volume, a 3.480/3.500-inch stroke crankshaft, and a 5.7-inch connecting rod.

What material are these pistons made from?

The pistons are constructed from 4032 aluminum. This material is known for its strength and thermal expansion properties, making it a popular choice for performance engine builds.

Can these pistons be shipped to California?

No, this piston set is not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle SBC Piston Set 4.030in Bore 930203630

Name: Mahle MS Piston Set SBC 358ci 4.030in Bore 3.480/3.500stk 5.7in Rod 0.927 Pin -5cc 10.4 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-sbc-358ci-4-030in-bore-3-480-3-500stk-5-7in-rod-0-927--t14-29989
Price: 783.94 USD
Availability: BackOrder

Mahle MS Piston Set SBC 358ci 4.030in Bore 3.480/3.500stk 5.7in Rod 0.927 Pin -5cc 10.4 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 forged piston set for Small Block Chevy 355ci engines. Features a 4.030in bore and 10.4:1 compression ratio.

Key Features

Fits Chevrolet Small Block 355 cu in. engines.
Mahle MS forged piston set.
4.030 inch bore diameter.
Features a -5cc dish volume.
Achieves a 10.4:1 compression ratio.
Constructed from 4032 aluminum.

This piston set is designed for Chevrolet Small Block 355 cubic inch engines. 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

This is a set of Mahle MS forged pistons designed for Small Block Chevy engines displacing 355 cubic inches. These pistons are built for performance applications, featuring a 4.030-inch bore and a -5cc dish that helps achieve a 10.4:1 compression ratio with a 3.480 or 3.500-inch stroke crankshaft and a 5.7-inch connecting rod.

Mahle is a well-known name in engine components, and these pistons are made from 4032 aluminum, which is a strong material often used in performance builds because it offers good durability and thermal expansion characteristics. The pistons weigh 495 grams each and use a 0.927-inch wrist pin. This set is intended for builders looking to assemble a robust engine with specific compression and displacement targets.

Please note that this piston set is not CARB approved and cannot be shipped to California. It is important to verify all dimensions and clearances with your engine builder or machinist before installation to ensure proper fitment and performance in your specific application.