What does 'O/S 020 (Size +0.75mm)' mean for these bearings?

This indicates the bearings are manufactured to be 0.020 inches (or 0.75mm) larger than the standard size. This is necessary when the crankshaft journals have been machined down to a repair size during an engine rebuild.

What material are these bearings made from?

These bearings are made from a tri-metal material, which is known for its strength and ability to conform to the crankshaft, helping to maintain oil film and reduce wear.

Are these bearings suitable for a stock engine rebuild?

These bearings are specifically sized to be 0.020 inches oversized. They are intended for engine rebuilds where the crankshaft has been ground to this specific repair size, not for a stock, unmachined crankshaft.

King Engine Bearings Main Bearing Set | MB4559SI0.75

Name: King Engine Bearings Holden Alloytec 175/190 O/S 020 (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-holden-alloytec-175-190-o-s-020-size-0-t14-770425
Price: 155.15 USD
Availability: BackOrder

King Engine Bearings Holden Alloytec 175/190 O/S 020 (Size +0.75mm) Main Bearing Set

$155.15

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 Holden Alloytec 175/190 O/S 020 (Size +0.75mm) Main Bearing Set

Key Features

This set is 0.020 inches (0.75mm) oversized for use with reground crankshafts.
Designed for Holden Alloytec 175/190 engines.
Constructed from a durable tri-metal material for good wear resistance.
Helps maintain proper oil clearance and pressure in the engine.

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Product Details

This King Engine Bearings main bearing set is machined to be 0.020 inches (0.75mm) oversized. This sizing is critical when rebuilding an engine where the crankshaft journals have been ground down to a repair size. These bearings are specifically made for Holden Alloytec 175/190 engines, ensuring they will fit correctly within the engine block to support the crankshaft.

King Engine Bearings uses a specialized tri-metal material for their performance bearings. This material offers a good balance of strength and conformability, which helps to absorb shock loads and maintain oil film even under demanding conditions. The precise sizing and material composition are key to reducing friction and wear in your engine's rotating assembly, contributing to its longevity and performance.

When rebuilding your Holden Alloytec engine, using the correct size and quality bearings is essential for a successful outcome. This set is designed to work with the specific dimensions of a reground crankshaft, helping to restore proper clearances and oil pressure.