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

The 'STDX' designation indicates that these connecting rod bearings are undersized by 0.040 inches. This is a common size for engine rebuilding when crankshaft journals have been ground undersize to clean them up.

What is the PMaxBlack overlay and why is it beneficial?

PMaxBlack is a specialized overlay applied to the bearing surface. It's designed to provide superior load capacity, meaning these bearings can withstand higher pressures without failing, which is beneficial in performance or heavy-duty applications.

Are these bearings sold individually or as a set?

These are sold as a set for connecting rods. Typically, an engine requires a set of 8 connecting rod bearings, with each bearing fitting one connecting rod.

Specifications

Brand: King Engine Bearings
Part #: CR808XPNSTDX
UPC: 611500529269

King Engine Bearings Chevrolet BBC 369-502 Gev IV/V/VI (Size STDX) Connecting Rod Bearing Set

Name: King Engine Bearings Chevrolet BBC 369-502 Gev IV/V/VI (Size STDX) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-bbc-369-502-gev-iv-v-vi-size-t14-364759
Price: 130.33 USD
Availability: BackOrder

$130.33

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King Engine Bearings connecting rod bearing set for Chevrolet BBC 369-502 Gen IV, V, VI. Size STDX. Features PMaxBlack for superior load capacity.

Key Features

Fits a wide range of Chevrolet BBC 369-502 Gen IV, V, VI engines.
Size STDX indicates these bearings are 0.040 inches undersize.
Features PMaxBlack overlay for improved load capacity.
Constructed with a tri-metal copper-based material.
Radialock design helps achieve optimal crush height for proper seating.

⚠️ 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

If you're working on a Chevrolet BBC 369-502 engine from Gen IV, V, or VI, these King Engine Bearings connecting rod bearings are a solid option. King has been specializing in bearings since 1960, focusing on making the best ones available. These particular bearings are a size STDX, meaning they are undersized by 0.040 inches, which is important to note for your build.

What sets these bearings apart is their PMaxBlack overlay, which helps them handle more load than standard bearings. They also use a Tri-metal copper-based material for the main bearing structure, offering a good balance of strength and conformability. The Radialock design helps ensure optimal crush height, which is crucial for proper bearing seating and oil clearance during installation.

These bearings are designed to fit a wide range of vehicles, including many Chevrolet, Buick, and Cadillac models from the 1960s through the early 2000s. Make sure to check the full fitment list to confirm compatibility with your specific application.