What is tri-metal construction?

Tri-metal bearings use three distinct layers for optimal performance. They typically have a steel backing for strength, a middle layer of lead-tin-copper for durability, and a top layer of babbit for excellent embeddability and oil retention.

Why is a flanged main bearing important?

Flanged main bearings help control the fore-and-aft movement (end play) of the crankshaft. This is critical for maintaining proper alignment and preventing damage to other engine components.

What does 'embeddability' mean for a bearing?

Embeddability refers to a bearing material's ability to absorb small debris particles that might enter the oil system. This prevents those particles from damaging the crankshaft surface.

Specifications

Brand: King Engine Bearings
Part #: MB1124HP
UPC: 611500438417

King Engine Bearings General Motors BIG BLOCK 369-502 GEN IV, V, VI - FLANGED BRG Main Bearing Set

Name: King Engine Bearings General Motors BIG BLOCK 369-502 GEN IV, V, VI - FLANGED BRG Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-big-block-369-502-gen-i-t14-487180
Price: 32.38 USD
Availability: BackOrder

$32.38

On Backorder

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King Engine Bearings Main Bearing Set MB1124HP for GM Big Block 369-502 Gen IV, V, VI engines. A solid option for engine rebuilds.

Key Features

Fits General Motors Big Block 369-502 Gen IV, V, VI engines.
Features a flanged design for crankshaft axial location.
Built with a durable tri-metal construction for long service life.
The babbit overlay offers excellent embeddability and conformability.

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About this part

Product Details

These main bearings from King Engine Bearings are built with a tri-metal construction, a common choice for performance and heavy-duty applications. This design uses a steel backing for strength, a lead-tin-copper overlay for durability, and a babbit overlay for excellent embeddability and conformability. This combination helps ensure a long service life and consistent oil film support for your crankshaft, especially under demanding conditions. They are specifically designed for General Motors Big Block 369-502 engines, covering Gen IV, V, and VI variants.

The flanged design of these bearings is important for main bearing applications where the bearing needs to help locate the crankshaft axially. This helps prevent excessive crankshaft end play, which is crucial for proper engine operation and longevity. When you're rebuilding a Big Block, getting the main bearings right is key to a strong, reliable foundation for your engine.