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. They are intended for use when the engine's crankshaft journals have been machined down by 0.030 inches during an engine rebuild to ensure proper clearance.

What is the 'MC' designation in the part number CR8057MC030?

The 'MC' in the part number indicates that these bearings utilize King's high-performance overlay material. This material is known for its exceptional strength and ability to handle high loads and pressures found in performance engines.

Are these bearings suitable for a stock LT1 or LT4 engine rebuild?

These bearings are specifically designed for GM 6.2L LT1 and LT4 Gen V engines. However, they are 0.030 inch undersize, so they are only suitable if the crankshaft journals have been machined down to that specific size during the rebuild process.

Specifications

Brand: King Engine Bearings
Part #: CR8057MC030
UPC: 611500605840

King Engine Bearings GM 6.2 - LT1/LT4 GEN V Connecting Rod Bearing Set

Name: King Engine Bearings GM 6.2 - LT1/LT4 GEN V Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-6-2-lt1-lt4-gen-v-connecting-rod-be-t14-794322
Price: 75.71 USD
Availability: BackOrder

$75.71

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 GM 6.2 - LT1/LT4 GEN V Connecting Rod Bearing Set. This set is 0.030 inch undersize for a precise fit.

Key Features

This set is 0.030 inch undersize for use with machined crankshaft journals.
Designed for GM 6.2L LT1 and LT4 Gen V engines.
Features King's high-performance overlay material for strength and durability.
Hardened steel backing provides a solid foundation for the bearing surface.
Helps maintain proper oil clearance for optimal oil pressure and lubrication.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

These King Engine Bearings are 0.030 inch undersize, meaning they are designed to be used when the crankshaft journals have been machined down by 0.030 inches during an engine rebuild. This set is specifically made for GM 6.2L LT1 and LT4 Gen V engines, commonly found in performance applications where engine integrity is paramount. Proper bearing clearance is critical for oil flow and preventing metal-on-metal contact, which can lead to catastrophic engine failure. King uses a specialized overlay material with a high-load overlay and a hardened steel backing to ensure durability and consistent performance under demanding conditions.

The 'MC' in the part number signifies King's high-performance overlay material, which is known for its strength and ability to withstand high pressures. This material helps to maintain a stable oil film, reducing friction and wear, especially in engines that are pushed hard. When rebuilding your LT1 or LT4 engine, using bearings that are precisely sized for your machined crankshaft journals is essential for achieving optimal oil pressure and longevity. This set ensures that you have the correct clearance for a properly functioning, well-built engine.