What does the '+0.030' sizing mean for these main bearings?

The '+0.030' indicates that these bearings are 0.030 inches larger in diameter than a standard-sized bearing. This size is used when the engine's crankshaft has been machined (ground) down by 0.030 inches, typically during an engine rebuild to account for wear or to set specific oil clearances.

What type of engine is this bearing set designed for?

This main bearing set is specifically designed for Chrysler 426ci and 440ci V8 overhead valve (OHV) engines. These are common in many classic Mopar performance applications.

Are these bearings suitable for a stock engine rebuild?

While these bearings are well-built, the '+0.030' sizing means they are intended for use with a crankshaft that has been machined to this specific undersize. If your crankshaft is still at standard size, you would need a standard-sized bearing set.

Specifications

Brand: King Engine Bearings
Part #: MB5116SI030
UPC: 611500615825

King Engine Bearings Chrysler 426Ci/ 440Ci V8 OHV (Size +0.030) Main Bearing Set

Name: King Engine Bearings Chrysler 426Ci/ 440Ci V8 OHV (Size +0.030) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chrysler-426ci-440ci-v8-ohv-size-0-030-t14-432432
Price: 84.16 USD
Availability: BackOrder

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King Engine Bearings Chrysler 426Ci/ 440Ci V8 OHV (Size +0.030) Main Bearing Set. A well-built set for engine rebuilds.

Key Features

This is a King Engine Bearings Main Bearing Set, part number MB5116SI030.
Designed for Chrysler 426ci and 440ci V8 OHV engines.
Bearings are sized 0.030 inches larger than standard (+0.030).
Well-built for engine rebuilds and performance applications.

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About this part

Product Details

This is a King Engine Bearings Main Bearing Set, part number MB5116SI030. This set is designed for Chrysler 426ci and 440ci V8 OHV engines and is sized 0.030 inches larger than standard, which is important when rebuilding an engine with a crankshaft that has been machined to match this size.

King Engine Bearings uses advanced materials and manufacturing processes to create durable engine bearings. This set is built to handle the stresses of a performance or rebuilt engine, ensuring proper oil clearance and support for the crankshaft. The +0.030 sizing means these bearings are intended for use with a crankshaft that has been ground down by 0.030 inches to account for wear or to achieve specific clearances during an engine build.