What does the 'STDX' size mean for these bearings?

The 'STDX' designation means these bearings are undersize. They are intended for use when the crankshaft connecting rod journals have been machined down (ground) to a specific undersize, typically during a rebuild.

Are these bearings suitable for a daily driver or only for racing?

These are part of King's pmax Black racing line, built with a strong tri-metal material for higher performance and load capacity. While they can be used in a daily driver, they are optimized for demanding applications.

What is the pmax Black material?

The pmax Black material is a tri-metal construction developed by King Engine Bearings. It's known for its strength and ability to handle the increased stresses found in performance and racing engines.

King Engine Bearings Alfa Romeo 105/105.48/Ar016/Ar64103/Ar67201 (Size STDX) Conrod Bearing Set

Specifications

Brand: King Engine Bearings
Part #: CR4595XPSTDX
UPC: 611500570513

King Engine Bearings Alfa Romeo 105/105.48/Ar016/Ar64103/Ar67201 (Size STDX) Conrod Bearing Set

Name: King Engine Bearings Alfa Romeo 105/105.48/Ar016/Ar64103/Ar67201 (Size STDX) Conrod Bearing Set
Brand: King Engine Bearings
Price: 121.68 USD
Availability: InStock

$121.68

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King Engine Bearings STDX conrod bearing set for various Alfa Romeo models. These racing line bearings offer improved performance.

Key Features

Fits various Alfa Romeo models including Alfetta, Berlina, and Spider.
STDX size indicates an undersize bearing, suitable for reground crankshaft journals.
Part of King's pmax Black racing line, featuring a tri-metal construction.
Designed for higher performance applications and increased load capacity.

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Will this fit your vehicle?

Product Details

If you're working on the bottom end of an Alfa Romeo 105 series, Alfetta, Berlina, or Spider, this King Engine Bearings conrod bearing set is what you'll need. These are the STDX size bearings, which are a specific undersize for engines that may have had their crankshaft journals ground down during a previous rebuild. They are part of King's pmax Black racing line, meaning they're built with a tri-metal material designed for higher performance applications.

The pmax Black material is known for its strength and ability to handle increased loads, making it a solid choice for performance builds or engines that see hard use. While these are racing bearings, they fit right into the connecting rods for a direct replacement, assuming the journals are prepped for the STDX size. King Engine Bearings is a well-known name in the performance and racing world, and these bearings reflect that experience.