What is the pmax black material?

The pmax black material is a tri-metal compound developed by King Engine Bearings for racing applications. It's designed to offer improved durability and heat management under high-stress conditions compared to standard bearings.

Are these bearings suitable for daily driving or only racing?

While designed with racing applications in mind due to the pmax black material, these bearings offer improved durability and friction reduction. They can be a solid option for performance-oriented daily drivers or any engine rebuild where enhanced bottom-end reliability is desired.

What is the difference between these and MB4018SI bearings?

These MB5737XP001 bearings are an optional upgrade from the MB4018SI race bearings. They utilize the advanced pmax black material, which is a step up in terms of performance and durability for demanding applications.

Specifications

Brand: King Engine Bearings
Part #: MB5737XP001
UPC: 611500575419

King Engine Bearings 1990+ General Motors 231 CI V6 OHV Crankshaft Main Bearing Set

Name: King Engine Bearings 1990+ General Motors 231 CI V6 OHV Crankshaft Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-1990-general-motors-231-ci-v6-ohv-cran-t14-118384
Price: 236.19 USD
Availability: BackOrder

$236.19

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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 crankshaft main bearing set for 1990+ GM 231 CI V6 OHV engines. Features pmax black racing line for improved performance.

Key Features

Fits 1990 and newer General Motors 231 CI V6 OHV engines.
Features King's pmax black tri-metal racing material for improved performance and durability.
Designed to reduce friction and manage heat in high-stress engine conditions.
A popular choice for engine rebuilds and performance applications.
This is an optional upgrade to MB4018SI race bearings.

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About this part

Product Details

The pmax black material used in these King Engine Bearings crankshaft main bearings is a tri-metal compound designed for racing applications. This means they offer improved durability and performance under high-stress conditions compared to standard bearings. If you're rebuilding the bottom end of your 1990 or newer General Motors vehicle with a 231 cubic inch V6 OHV engine, these bearings are built to handle the demands of performance driving.

These bearings are a step up from the standard MB4018SI race bearings, utilizing King's pmax black technology. This advanced material helps manage heat and reduce friction, which is crucial for maintaining oil pressure and preventing premature wear in performance engines. They are designed to fit right into a wide range of GM vehicles, ensuring a solid option for your engine build.

When you're putting together a performance engine, the details matter. These King Engine Bearings are a well-built component that can make a notable difference in the longevity and performance of your V6. They are a popular choice for those looking to get the most out of their engine rebuild.