What does STDX sizing mean for these bearings?

The STDX designation means these bearings are 0.001 inch undersize. This is useful if your crankshaft journals have been machined undersize during an engine rebuild to ensure proper clearance.

What is the pMax Black material?

The pMax Black is a tri-metal material used in these bearings. It's known for its strength and ability to handle higher loads compared to standard bearings, making it a good choice for performance or rebuilt engines.

Are these bearings suitable for a daily driver or just race cars?

While the manufacturer notes them as 'race bearings,' the XP Series with pMax Black material offers improved durability and load capacity that can benefit a rebuilt daily driver engine as well, especially if it sees harder use.

Specifications

Brand: King Engine Bearings
Part #: CR6618XPSTDX
UPC: 611500582844

King Engine Bearings Chevrolet 200/229ci XP Series Connecting Rod Bearing Set - STDX Size

Name: King Engine Bearings Chevrolet 200/229ci XP Series Connecting Rod Bearing Set - STDX Size
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-200-229ci-xp-series-connecti-t14-480757
Price: 131.89 USD
Availability: BackOrder

$131.89

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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 XP Series STDX connecting rod bearing set for Chevrolet 200/229ci engines. A solid option for engine rebuilds.

Key Features

Fits a range of Chevrolet 200 and 229ci engines.
XP Series connecting rod bearing set.
Constructed with a tri-metal pMax Black material for improved performance.
STDX size indicates 0.001 inch undersize for crankshaft journals.
Designed for demanding applications and engine rebuilds.

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About this part

Product Details

If you're rebuilding the engine in your classic Chevrolet or GMC truck, or a performance car like a Camaro or El Camino, getting the connecting rod bearings right is crucial. These King Engine Bearings XP Series bearings are built with a tri-metal pMax Black material, which is a step up from standard bearings and offers improved performance for demanding applications.

The STDX sizing means these bearings are 0.001 inch undersize, which is helpful if your crankshaft journals have been ground undersize during a rebuild. This tri-metal construction is known for its strength and ability to handle higher loads, making it a popular choice when you need reliable performance from your engine's rotating assembly. They fit a range of Chevrolet 200 and 229 cubic inch engines found in vehicles like the Chevrolet Caprice, Malibu, and GMC Caballero.