What is the HP series overlay material?

The HP series bearings feature a specialized overlay material that provides improved strength and durability. This makes them well-suited for performance applications that experience higher loads and stresses.

Are these bearings a complete set for an engine rebuild?

This specific product, MB1124HPSTDX, contains the flange-only main bearings from the MB556HP set. It is important to verify if this covers all the main bearings needed for your specific GM BBC engine build, as it may not be a complete set on its own.

Specifications

Brand: King Engine Bearings
Part #: MB1124HPSTDX
UPC: 611500436772

King Engine Bearings Gm BBC Flange Only Hp (From Set Mb 556Hp) (Size STDX) Main Bearing Set

Name: King Engine Bearings Gm BBC Flange Only Hp (From Set Mb 556Hp) (Size STDX) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-bbc-flange-only-hp-from-set-mb-556h-t14-770216
Price: 32.38 USD
Availability: BackOrder

$32.38

On Backorder

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

King Engine Bearings HP Main Bearing Set MB1124HPSTDX. STDX size. For GM BBC engines.

Key Features

This product is a King Engine Bearings HP Main Bearing Set, part number MB1124HPSTDX.
Includes flange-only main bearings from the MB556HP set.
Bearings are sized STDX, which is 0.0005 inches larger than standard.
Designed for GM Big Block Chevrolet (BBC) engines.
Features King's HP series overlay material for improved strength and durability.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

This is a King Engine Bearings HP Main Bearing Set, part number MB1124HPSTDX. It includes the flange-only main bearings from the MB556HP set, sized STDX. These bearings are designed for GM Big Block Chevrolet (BBC) engines.

The HP series bearings from King are built with a specialized overlay material that offers improved strength and durability compared to standard bearings. This makes them a solid option for performance applications where increased load and stress are common. The STDX sizing indicates these bearings are 0.0005 inches larger than standard, often used when the crankshaft journals have been machined to a specific undersize or to tighten up bearing clearances.