What is the material and construction of these Mahle pistons?

These Mahle MS pistons are forged from a durable aluminum alloy. Forging creates a stronger, more resilient piston compared to cast alternatives, making them suitable for performance applications and demanding engine conditions.

Are these pistons a direct replacement for all Porsche 356 models?

This piston set is designed for the Porsche 356 with an 86.0mm bore. While they are a specific fit for certain 356 engine configurations, it's crucial to verify your engine's bore size and stroke specifications to ensure proper compatibility before purchase.

What is included in this piston set?

This set includes four Mahle MS pistons. It is important to note that piston rings and wrist pin retainers are typically sold separately and should be sourced to match the piston specifications for optimal performance and sealing.

Mahle MS Piston Set Porsche 356 86.0mm Bore PP86-003N

Name: Mahle MS Piston Set Porsche 356 86.0mm Bore 74mm Stroke 135.95mm Rod 22mm Pin 15.8cc 9.5CR Set of 4
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-porsche-356-86-0mm-bore-74mm-stroke-135-95mm-rod-22mm--t14-224457
Price: 1299.84 USD
Availability: BackOrder

Mahle MS Piston Set Porsche 356 86.0mm Bore 74mm Stroke 135.95mm Rod 22mm Pin 15.8cc 9.5CR Set of 4

$1299.84

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 Porsche 356. 86.0mm Bore, 74mm Stroke, 135.95mm Rod, 22mm Pin. Set of 4.

Key Features

Set of 4 Mahle MS pistons for Porsche 356.
86.0mm bore diameter.
Designed for a 74mm crankshaft stroke.
Compatible with 135.95mm connecting rods.
Features a 22mm wrist pin diameter.
15.8cc piston dish volume.

This piston set is specifically designed for the Porsche 356. Please consult with a professional or refer to detailed technical specifications to confirm 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 MS Piston Set for Porsche 356. This set includes four pistons, each measuring 86.0mm in bore diameter, designed to work with a 74mm stroke and a 135.95mm connecting rod. The wrist pin is 22mm, and each piston has a dish volume of 15.8cc, resulting in a compression ratio of 9.5:1. These pistons are a well-built component for rebuilding or upgrading the engine in your Porsche 356.

Crafted from durable aluminum alloy, these Mahle pistons are forged for strength, which is crucial for handling the stresses of a performance engine. The 86.0mm bore size is specific for certain Porsche 356 engine configurations, and the included 22mm wrist pins are designed for a secure fit with compatible connecting rods. The 15.8cc dish volume is carefully calculated to achieve the 9.5:1 compression ratio, balancing power output with reliable operation on pump gasoline. Mahle is a well-known name in engine components, recognized for their commitment to precision and performance.

This set is intended for a complete engine rebuild where all four pistons are replaced to ensure consistent performance across all cylinders. It is important to 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, especially regarding ring installation and cylinder wall preparation.