Specifications
- Brand
- Mahle
- Part #
- 197754525-1

Mahle MS Piston 400ci 4.125in Bore 3.500in Stroke 6.125in Rod .927 Pin 9.0cc 13.0 CR - Single
$112.76
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This is a single Mahle forged piston for a 400ci engine, featuring a 4.125in bore and 13.0 compression ratio.
Key Features
- This is a single Mahle forged piston.
- Designed for Chevrolet Small Block 400 cu in. engines.
- Features a 4.125 inch bore and 3.500 inch stroke.
- Includes a 6.125 inch rod length and a .927 inch pin diameter.
- Has a 9.0cc dish volume for a 13.0:1 compression ratio.
- Constructed from 2618 aluminum.
⚠️ 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
Product Details
This listing is for a single Mahle forged piston, designed for a 400 cubic inch Chevrolet Small Block engine. It features a 4.125-inch bore and a 3.500-inch stroke, with a 6.125-inch rod length and a .927-inch pin diameter. The piston has a 9.0cc dish volume, resulting in a 13.0:1 compression ratio when used with a 4.125-inch bore and 3.500-inch stroke.
Constructed from 2618 aluminum, this piston is built for demanding applications where strength and reliability are key. The material choice offers good thermal expansion properties, which is important for high-performance engines. This piston weighs 446 grams, a detail that helps in balancing rotating assemblies for smoother operation.
Please note that this piston is not CARB approved and cannot be shipped to California. It also carries a Prop 65 warning.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 197754525-1
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Mahle MS Piston 400ci 4.125in Bore 3.500in Stroke 6.125in Rod .927 Pin 9.0cc 13.0 CR - Single




