What does the +0.50mm sizing mean for my engine?

The +0.50mm sizing indicates that these bearings are designed for a crankshaft that has been machined down by 0.50mm. This is typically done to correct wear, damage, or out-of-round conditions on the original crankshaft journals.

What is the advantage of King's multi-layer bearing design?

King's multi-layer design combines a strong steel backing with a copper-lead alloy for load carrying and a babbit overlay for conformability. This construction helps absorb shock, prevent wear, and ensure proper oil film formation.

Do I need to purchase anything else with these main bearings?

When rebuilding an engine, you will typically need new main bearing bolts, engine oil, and an oil filter. Always refer to your engine's service manual for a complete list of required parts and procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5840MC0.5
UPC: 611500629648

King Engine Bearings Chrysler/Dodge Gen Iii Hemi 5.7/6.1/6.4 (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Chrysler/Dodge Gen Iii Hemi 5.7/6.1/6.4 (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chrysler-dodge-gen-iii-hemi-5-7-6-1-6--t14-771011
Price: 80.67 USD
Availability: BackOrder

$80.67

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King Engine Bearings Gen III Hemi 5.7/6.1/6.4 main bearing set. Size +0.50mm. For rebuilding your engine's crankshaft support.

Key Features

Main bearing set for Chrysler/Dodge Gen III Hemi 5.7L, 6.1L, and 6.4L engines.
Bearing size is +0.50mm, intended for use on a crankshaft machined to this undersize.
Features a high-performance overlay material for durability and load capacity.
Multi-layer construction includes steel backing, copper-lead alloy, and babbit overlay.
Designed to maintain proper oil clearance and support the crankshaft.

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About this part

Product Details

This King Engine Bearings main bearing set is built with a high-performance overlay material, designed to handle the demands of Chrysler/Dodge Gen III Hemi engines. Specifically, this set is sized +0.50mm, meaning it's intended for crankshafts that have been machined down by 0.50mm to correct wear or out-of-round conditions. These bearings are crucial for maintaining proper oil clearance and supporting the crankshaft within the engine block.

King uses a multi-layer bearing design that combines a steel backing for strength, a copper-lead alloy for load carrying, and a babbit overlay for improved conformability and embeddability. This construction helps to absorb shock loads and prevent premature wear, especially in performance applications or engines with higher mileage. The +0.50mm sizing ensures a precise fit on a machined crankshaft, allowing for the correct oil film thickness necessary for lubrication and cooling.

When rebuilding a Gen III Hemi, using bearings that match the machined size of your crankshaft is essential for engine longevity. This set from King Engine Bearings offers a well-built solution for restoring or building your engine with the correct specifications.