What does the 0.020" size mean for these bearings?

The 0.020" designation indicates that these bearings are 0.020 inches undersize. This is important when your engine's crankshaft has been machined undersize during a rebuild to correct wear or damage. Using the correct undersize bearing ensures proper clearance and oil film.

Are these bearings safe for the environment?

Yes, these bearings are made with a lead-free composite material, making them an environmentally safe option compared to older bearing technologies.

What is the primary benefit of the bi-metal aluminum material?

The bi-metal aluminum material offers a good balance of strength and conformability. This allows the bearing to adapt slightly to the crankshaft surface while maintaining structural integrity under load.

Specifications

Brand: King Engine Bearings
Part #: MB556HPN020
UPC: 611500618116

King Engine Bearings Chevrolet 396-502 GEN IV/V/VI HP-Series Main Bearings (Size 020)

Name: King Engine Bearings Chevrolet 396-502 GEN IV/V/VI HP-Series Main Bearings (Size 020)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-396-502-gen-iv-v-vi-hp-serie-t14-847963
Price: 135.01 USD
Availability: BackOrder

$135.01

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King Engine Bearings HP-Series Main Bearings for Chevrolet 396-502 GEN IV/V/VI. Size 0.020".

Key Features

Fits 108+ vehicle combinations including Chevrolet Bel Air, Camaro, and C10 Pickup.
HP-Series main bearings are designed for Chevrolet 396-502 GEN IV, V, and VI engines.
Features a bi-metal aluminum material for robust performance.
Constructed with a lead-free, environmentally safe composite.
Utilizes an Alecular high-performance composite for durability.
This set is 0.020 inches undersize, suitable for machined crankshafts.

⚠️ 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

King Engine Bearings has been specializing in engine bearings since 1960, focusing on supplying the highest quality bearings available. This expertise is evident in their HP-Series Main Bearings, designed for Chevrolet 396-502 GEN IV, V, and VI engines. These bearings are built with a bi-metal aluminum material and feature a lead-free composite, making them an environmentally safe choice for high-performance applications.

The MB556HPN020 set is specifically sized at 0.020 inches undersize, which is crucial for engines that have been machined during a rebuild. This size ensures a proper fit and clearance for optimal oil film and bearing performance. The Alecular high-performance composite construction contributes to their durability and effectiveness under demanding conditions, making them a solid option for rebuilding or upgrading your engine.

These main bearings fit a wide range of Chevrolet vehicles, including popular models like the C10 Pickup, Camaro, and Corvette from the mid-60s through the mid-70s, as well as later models like the C1500 and C2500. If you're working on a 396-502 big-block Chevrolet, this set offers a well-built solution for your engine's bottom end.