What does '0.05 undersize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 0.05 inches from its original size. This is common when a crankshaft has wear and needs to be reconditioned.

What is the advantage of King Engine Bearings' overlay material?

King's proprietary overlay material is a three-layer system designed for high-performance applications. It offers excellent embeddability and conformability to the crankshaft, helping to reduce friction and wear while withstanding significant loads.

Are these bearings suitable for a stock engine rebuild?

These bearings are 0.05 undersize, which means they are intended for a reconditioned crankshaft. If your crankshaft is still at standard size, you would need a standard size bearing set. Always confirm your crankshaft journal size before ordering bearings.

King Engine Bearings Main Bearing Set MB7779MC0.5

Name: King Engine Bearings Toyota Supra B58 (Size 0.05) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-supra-b58-size-0-05-main-bearin-t14-432604
Price: 119.27 USD
Availability: BackOrder

King Engine Bearings Toyota Supra B58 (Size 0.05) Main Bearing Set

$119.27

On Backorder

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

King Engine Bearings Main Bearing Set MB7779MC0.5 for Toyota Supra B58. 0.05 undersize.

Key Features

Main bearing set for Toyota Supra B58 engine.
Part number MB7779MC0.5.
Bearings are 0.05 inch undersize.
Features King's high-performance overlay material for durability.
Three-layer overlay with steel backing for strength.

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Product Details

This is a main bearing set from King Engine Bearings, part number MB7779MC0.5, specifically for the Toyota Supra B58 engine. These bearings are crucial for the crankshaft to spin smoothly within the engine block. This set is 0.05 undersize, meaning it's intended for crankshafts that have been machined down by 0.05 inches to correct for wear or to achieve a specific clearance.

King Engine Bearings are well-built using their proprietary high-performance overlay material, which is designed to withstand the pressures and temperatures found in performance engines. The overlay is applied in three layers, with a steel-backed structure for strength and a babbit overlay for excellent embeddability and conformability to the crankshaft surface. This combination helps to reduce friction and wear, ensuring the longevity of your engine's rotating assembly.

When rebuilding or repairing your B58 engine, using bearings that match the machined size of your crankshaft is essential for proper oil clearance. This set is a solid option for those who have had their crankshaft journals precisely machined to a 0.05 undersize specification.