What does it mean that these rings are 0.040 inch undersize?

This means the rings are designed to fit into cylinders that have been bored out by 0.040 inches during an engine rebuild. This is a common practice to restore cylinder wall integrity and achieve a proper fit with new rings.

Are these rings suitable for a performance engine build?

These Mahle OE rings are designed to meet original equipment specifications, focusing on reducing friction and oil consumption for reliable daily driving. For high-performance or racing applications, you may want to consult with a specialist about rings designed for those specific demands.

What is the typical lifespan of these piston rings?

Mahle designs their piston rings for a longer service life by minimizing friction and ensuring proper sealing. Actual lifespan can vary significantly based on driving habits, maintenance, and the overall condition of the engine.

Mahle Piston Rings 51616CP.040 - 5.7L Engines 1990-96

Name: Mahle Rings GMC Pass 350 5.7L Eng 1990-94 Plain Ring Set
Brand: Mahle OE
Price: 58.29 USD
Availability: InStock

Mahle Rings GMC Pass 350 5.7L Eng 1990-94 Plain Ring Set

$58.29

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle OE piston ring set for 5.7L engines. Reduces friction and oil consumption for improved engine life.

Key Features

Fits a wide range of 5.7L GM vehicles from 1990-2002, including Chevrolet and GMC models.
These are 0.040 inch undersize rings, intended for bored cylinders.
Mahle OE rings are designed to reduce friction and minimize engine oil consumption.
Well-built to meet original equipment specifications for reliable performance.
Helps ensure proper cylinder sealing for optimal compression and engine efficiency.

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Will this fit your vehicle?

Product Details

If you're rebuilding the top end of your 5.7L V8 engine, a fresh set of piston rings is essential for proper sealing and performance. These Mahle OE rings are designed to meet the original equipment specifications for a wide range of GM vehicles from the early 90s through the early 2000s, including popular models like the Chevrolet Camaro, Corvette, and GMC Savana vans.

Mahle focuses on reducing friction and minimizing oil consumption with their piston ring technology. This means your engine can run more efficiently and potentially last longer. The rings are well-built to ensure they seat properly against the cylinder walls, which is critical for maintaining compression and preventing blow-by. This particular set is 0.040 inches undersize, meaning it's intended for cylinders that have been bored out to that dimension during an engine rebuild.

When you're putting an engine back together, using parts that match the original design helps ensure everything works as intended. These Mahle rings are a solid option for anyone looking to restore their engine's performance and reliability.