What does the 0.05 size designation mean for these bearings?

The '0.05' in the part number indicates that these main bearings are 0.05 inches undersize. This means they are designed to fit a crankshaft that has been machined down by 0.05 inches from its original size, typically done during an engine rebuild to correct wear or damage.

What is the benefit of the high-performance overlay on these bearings?

The high-performance overlay is a tin-based material that offers improved embeddability. This allows the bearing surface to better conform to the crankshaft, which can help with oil distribution and reduce the risk of damage, especially with different crankshaft finishes.

What is the 'Obstructive' groove design?

The 'Obstructive' groove design is a specific feature in these bearings that helps manage oil flow. It's engineered to ensure that oil continues to reach the connecting rod effectively, even when the engine is under heavy load or experiencing lower oil pressures, contributing to consistent lubrication.

Specifications

Brand: King Engine Bearings
Part #: MB1322XPC0.5
UPC: 611500612732

King Engine Bearings VW V8/V10 R8/RS6/Huracan (Size 0.05) Main Bearing Set

Name: King Engine Bearings VW V8/V10 R8/RS6/Huracan (Size 0.05) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-vw-v8-v10-r8-rs6-huracan-size-0-05-mai-t14-432394
Price: 137.65 USD
Availability: BackOrder

$137.65

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King Engine Bearings VW V8/V10 R8/RS6/Huracan main bearing set. This is a 0.05 undersize set for a precise rebuild.

Key Features

This is a 0.05 inch undersize main bearing set.
Features a high-performance tin-based overlay for improved embeddability.
Includes King's 'Obstructive' groove design to maintain oil flow.
Built with a strong steel backing for stability.
Designed for VW V8/V10 engines found in Audi R8, RS6, and Lamborghini Huracan.

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About this part

Product Details

These King Engine Bearings main bearings are built with a high-performance overlay. The overlay is a tin-based material that's designed to be compatible with various crankshaft finishes and offers improved embeddability, meaning it can better conform to any minor imperfections on the crank surface. This set is specifically sized at 0.05 inches undersize, which is crucial for engine rebuilds where the crankshaft has been machined to a smaller diameter to clean up wear or damage.

King uses a unique 'Obstructive' groove design in these bearings. This design helps to maintain oil flow to the connecting rod, even under high loads or at lower oil pressures. This is important for preventing bearing damage and ensuring consistent lubrication throughout the engine's operating range. The bearings are also made with a strong steel backing for stability and durability.

When you're rebuilding a high-performance V8 or V10 engine like those found in the Audi R8, RS6, or Lamborghini Huracan, using bearings that can handle the demands is key. This set is a solid option for ensuring proper main bearing function and longevity in your build.