What does '0.030 inch undersize' mean for these bearings?

This means the bearings are manufactured to be 0.030 inches smaller in diameter than standard size. This is used when the crankshaft journals have been machined down (ground undersize) to remove wear or damage.

What is the advantage of King's specialized overlay material?

King's overlay material is formulated to offer good durability and resistance to wear. This helps the bearings withstand the friction and pressure they experience during engine operation.

Are these bearings sold individually or as a set?

This is a set of connecting rod bearings. Typically, a set includes enough bearings for all the connecting rods in the specified engine.

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Specifications

Brand: King Engine Bearings
Part #: CR4070AM030
UPC: 611500267338

King Engine Bearings Continental 120, 129, Z134, Z145 Connecting Rod Bearing Set

Name: King Engine Bearings Continental 120, 129, Z134, Z145 Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-continental-120-129-z134-z145-connecti-t14-484209
Price: 51.79 USD
Availability: BackOrder

$51.79

On Backorder

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King Engine Bearings connecting rod bearing set CR4070AM030. This set is 0.030 inch undersize.

Key Features

This is a King Engine Bearings connecting rod bearing set.
Part number CR4070AM030.
This set is 0.030 inch undersize.
Designed for Continental 120, 129, Z134, and Z145 engines.
Features King's specialized overlay material for durability.

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About this part

Product Details

King Engine Bearings is known for making solid internal engine components. This connecting rod bearing set, part number CR4070AM030, is a good example of their work for Continental engines. These bearings are designed to handle the stresses of engine operation, helping to ensure smooth rotation of your crankshaft.

This particular set is machined to be 0.030 inch undersize. This sizing is important when you're rebuilding an engine and need to account for wear on the crankshaft journals, or if you've had the crankshaft ground undersize. Using the correct undersize bearing ensures proper oil clearance, which is critical for bearing longevity and engine health. King uses a specialized overlay material that's designed to be durable and resist wear, even under demanding conditions.