What is the main function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while maintaining the correct oil clearance between the crank and the block.

Why is maintaining oil clearance important with main bearings?

Proper oil clearance ensures a consistent film of oil between the bearing and the crankshaft. This oil film reduces friction and wear, which is critical for the longevity of your engine's rotating assembly.

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Specifications

Brand: King Engine Bearings
Part #: MB5849HP
UPC: 611500615504

King Engine Bearings Pontiac 455 Main Bearing Set

Name: King Engine Bearings Pontiac 455 Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-pontiac-455-main-bearing-set-t14-432560
Price: 123.67 USD
Availability: BackOrder

$123.67

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings Pontiac 455 Main Bearing Set MB5849HP. Get reliable engine performance with these well-built main bearings.

Key Features

Fits Pontiac 455 engines.
Main bearing set for crankshaft support.
Well-built for reliable engine performance.
Designed to maintain consistent oil film thickness.
Supports smooth crankshaft rotation.

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About this part

Product Details

King Engine Bearings is known for making solid engine bearings, and this main bearing set for the Pontiac 455 is no exception. These bearings are a crucial part of your engine's rotating assembly, supporting the crankshaft and ensuring it spins smoothly within the block. If you're rebuilding your Pontiac 455's bottom end, a fresh set of main bearings is essential for proper oil clearance and long-term durability.

This set is built to handle the demands of a performance Pontiac 455. They are designed to maintain consistent oil film thickness, which is key to reducing friction and wear on your crankshaft and bearing surfaces. Proper installation and oil clearance are critical for these bearings to perform as intended, so make sure to follow your engine build manual's specifications.