What does '6 Upper Flanges' mean for these bearings?

The '6 Upper Flanges' refer to a specific design feature on the bearing's outer surface. This design helps to better manage oil flow and provide enhanced support for the crankshaft under high-stress conditions common in performance engines.

What does the 'STDX' size designation signify?

STDX is an undersize specification. This means the bearings are intended for use with a crankshaft that has been machined down by a specific amount to match this bearing size. It's important to ensure your crankshaft has been properly machined to this dimension before installation.

Are these bearings suitable for a stock engine rebuild?

While King Engine Bearings are well-built, this particular set with '6 Upper Flanges' and 'Top Fuel' designation is primarily intended for high-performance and racing applications. For a stock rebuild, you might consider a different bearing set unless your engine build specifically requires these features.

Specifications

Brand: King Engine Bearings
Part #: MB5116TFC6UFSTDX
UPC: 611500619793

King Chrysler 426Ci/ 440Ci V8 OHV- 6 Upper Flanges (Top Fuel) (Size STDX) Main Bearing Set

Name: King Chrysler 426Ci/ 440Ci V8 OHV- 6 Upper Flanges (Top Fuel) (Size STDX) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-chrysler-426ci-440ci-v8-ohv-6-upper-flanges-top-fuel-s-t14-432447
Price: 376.33 USD
Availability: BackOrder

$376.33

On Backorder

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

Key Features

Fits Chrysler 426Ci and 440Ci V8 OHV engines.
Features 6 Upper Flanges for improved oil control and load support.
Size STDX indicates an undersize specification for a machined crankshaft.
Designed for high-performance and 'Top Fuel' applications.

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About this part

Product Details

King Engine Bearings is well-known for making solid engine bearings that hold up to tough conditions. This main bearing set is built for Chrysler 426 cubic inch and 440 cubic inch V8 engines, specifically those with overhead valves. If you're working on a high-performance build, especially one aiming for 'Top Fuel' levels of power, these bearings are designed to handle the extreme loads.

What sets these apart is the '6 Upper Flanges' design, which helps manage oil flow and support under high stress. They are also sized STDX, which is an undersize specification, meaning they are intended for crankshafts that have been machined down to match this size. This precise sizing is crucial for ensuring proper oil clearance and preventing premature wear in demanding applications.

When you're rebuilding a performance V8 like this, getting the bearing specs right is critical for engine longevity and performance. This set from King is a well-built option for those who need reliable main bearings for their Chrysler big block.