What does the '+0.030' sizing mean for these bearings?

The '+0.030' indicates that these bearings are designed for a crankshaft that has been machined down by 0.030 inches. This is a common practice during engine rebuilding to correct wear or runout on the crankshaft journals.

What is the advantage of a tri-metal bearing construction?

Tri-metal bearings use three layers of material, typically a steel backing, a copper-lead alloy intermediate layer, and a nickel-plated overlay. This combination offers a strong foundation with excellent wear resistance and conformability, which helps maintain oil film integrity.

Are these bearings suitable for performance applications?

Yes, the tri-metal construction and the brand's reputation suggest these bearings are well-suited for applications where durability and consistent performance are important, including modified or performance-oriented Vortec engines.

Specifications

Brand: King Engine Bearings
Part #: MB5868CP030
UPC: 611500621598

King Engine Bearings General Motors 169 Lk5 Vortec 16V DOHC (Size +0.030) Main Bearing Set

Name: King Engine Bearings General Motors 169 Lk5 Vortec 16V DOHC (Size +0.030) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-169-lk5-vortec-16v-dohc-t14-432573
Price: 148.76 USD
Availability: BackOrder

$148.76

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 MB5868CP030 for General Motors 169 Lk5 Vortec 16V DOHC. Size +0.030.

Key Features

This is a +0.030 inch undersize main bearing set.
Features a tri-metal construction for improved durability and performance.
Designed for General Motors 169 Lk5 Vortec 16V DOHC engines.
Helps maintain proper oil clearance and pressure in the engine.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

These King Engine Bearings main bearings are built with a tri-metal material that offers a strong overlay for durability. They are specifically sized at +0.030 inches, meaning they are intended for crankshafts that have been machined down by that amount during an engine rebuild. This set is designed for General Motors 169 Lk5 Vortec 16V DOHC engines, providing a well-built replacement for your worn-out bearings.

The tri-metal construction is a popular choice for performance and heavy-duty applications because it balances strength with the ability to conform to the crankshaft. This helps to maintain a consistent oil film, which is crucial for reducing friction and wear. When you're rebuilding the bottom end of your Vortec engine, replacing the main bearings is a critical step to ensure proper oil pressure and long-term engine health.