What is the compression ratio of this piston set?

This Mahle MS Piston Set features a 9.8:1 compression ratio. This is a notable increase over stock for many applications, designed to enhance engine performance.

What are the key dimensions for installing these pistons?

The pistons have a 92mm bore, are designed for a 70.4mm stroke crankshaft, a 127.8mm connecting rod, and use a 22mm wrist pin. The dish volume is 21.5cc.

Can this piston set be shipped to California?

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

Mahle Piston Set 92mm 9.8CR for Porsche 911 2.7-2.8L

Name: Mahle MS Piston Set 73-77 Por 911 2.7-2.8L 92mm Br 70.4 Stk 127.8mm Rod 22mm Pin 21.5cc 9.8CR Set 6
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-73-77-por-911-2-7-2-8l-92mm-br-70-4-stk-127-8mm-rod-22-t14-224485
Price: 2081.06 USD
Availability: BackOrder

Mahle MS Piston Set 73-77 Por 911 2.7-2.8L 92mm Br 70.4 Stk 127.8mm Rod 22mm Pin 21.5cc 9.8CR Set 6

$2081.06

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 1973-1977 Porsche 911 2.7-2.8L. 92mm bore, 9.8:1 CR. Part# PP92-004N. Not CARB approved.

Key Features

Fits 1973-1977 Porsche 911 2.7-2.8L engines.
92mm bore size.
9.8:1 compression ratio.
Designed for 70.4mm stroke crankshaft and 127.8mm connecting rod.
Features a 22mm wrist pin diameter.
Includes pistons with a 21.5cc dish volume.

This piston set is designed for 1973-1977 Porsche 911 models with 2.7-2.8 liter 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

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Product Details

This is a Mahle MS Piston Set specifically for 1973-1977 Porsche 911 models with 2.7-2.8 liter engines. These pistons are designed to replace your original equipment and are crucial for the proper operation of your engine's combustion cycle. They are built to handle the demands of performance driving and engine rebuilding, ensuring your air-fuel mixture is compressed effectively for optimal power output.

Mahle has engineered these pistons with a 92mm bore and a 9.8:1 compression ratio, which is a notable increase over stock for many applications, contributing to improved engine performance. The set includes pistons designed for a 70.4mm stroke crankshaft and a 127.8mm connecting rod length, with a 22mm wrist pin diameter. The 21.5cc dish volume is precisely calculated to achieve the stated compression ratio. This set is well-built for durability and consistent performance, making it a solid choice for anyone rebuilding or upgrading their Porsche 911 engine.

When undertaking an engine rebuild of this caliber, it's important to ensure all components are properly matched and installed according to manufacturer specifications. This piston set is intended for use in engines where a higher compression ratio is desired for increased power. Please note that these pistons are not CARB approved and cannot be shipped to California. Always consult your service manual for detailed installation procedures and torque specifications.