What is the primary purpose of main bearings in an LS engine?

Main bearings support the crankshaft within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while handling significant loads.

What makes the Manley H Series bearings suitable for performance builds?

The H Series bearings utilize a high-load overlay material. This construction is specifically developed by Manley to offer improved durability and withstand the higher pressures and stresses common in modified or performance LS engines.

Are these bearings a direct replacement for all LS engines?

These are designed for Small Block Chevy LS engines. It's always recommended to verify the specific fitment for your engine's year and model with the manufacturer's fitment guide before purchasing.

Specifications

Brand: Manley Performance
Part #: 33030H
UPC: 807298078144

Manley Main Bearing, SB CHEV LS MAIN BEARINGS H SERIES

Name: Manley Main Bearing, SB CHEV LS MAIN BEARINGS H SERIES
Brand: Manley Performance
SKU: manley-performance-manley-main-bearing-sb-chev-ls-main-bearings-h-series-t14-881345
Price: 292.84 USD
Availability: BackOrder

$292.84

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Manley Performance H Series main bearings for SB Chevy LS engines. These well-built bearings are designed for performance applications.

Key Features

Fits Small Block Chevy LS engines.
Manley H Series main bearings.
Features a high-load overlay material for improved durability.
Designed for performance applications and demanding builds.
Part number 33030H.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Manley Performance is well-known for making strong internal engine components, and their H Series main bearings are a prime example. If you're rebuilding a Small Block Chevy LS engine, these bearings are designed to handle the demands of performance builds.

The H Series bearings feature a high-load overlay material that Manley developed for improved durability under stress. This means they can better withstand the increased pressures and temperatures found in modified LS engines, helping to protect your crankshaft. They are built to fit right into your LS engine block, making them a solid option for your rebuild.

When you're putting an engine back together, especially one that's going to see hard use, using well-made internal components like these Manley bearings is crucial for long-term reliability.