What does the +0.25 sizing mean for these bearings?

The +0.25 sizing indicates that these bearings are intended for use with a crankshaft that has been machined down by 0.00025 inches (0.00635 mm) on its journals. This is a common practice when rebuilding engines to ensure proper oil clearance with a worn or reconditioned crankshaft.

What is the P-Max black racing lining?

The P-Max lining is a specialized material developed by King Engine Bearings for high-performance and racing applications. It offers enhanced load-bearing capabilities and improved resistance to wear and fatigue compared to standard bearing materials.

Are these bearings suitable for a daily driver?

While these bearings are built for demanding applications and offer excellent durability, their P-Max lining is optimized for higher loads and temperatures often found in performance or racing engines. For a standard daily driver, a different bearing series might be more appropriate, but they will function correctly if installed properly.

Specifications

Brand: King Engine Bearings
Part #: CR6837XP0.25
UPC: 611500614439

King Engine Bearings Honda J30 / J35 (Size +0.25) Performance Rod Bearing Set

Name: King Engine Bearings Honda J30 / J35 (Size +0.25) Performance Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-honda-j30-j35-size-0-25-performance-ro-t14-354020
Price: 124.24 USD
Availability: BackOrder

$124.24

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King Engine Bearings performance rod bearing set for Honda J30/J35 engines. Size +0.25. Built for demanding applications.

Key Features

Fits a wide range of Acura and Honda J30 and J35 engines.
Rod bearing set is sized +0.25 inch, requiring a machined crankshaft.
Features King's P-Max black racing lining for improved load capacity and wear resistance.
Tri-metal construction with a hardened steel backing offers solid durability.
Designed for performance and racing applications where higher loads are expected.
Helps reduce friction and improve oil flow to critical engine components.

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About this part

Product Details

The P-Max black racing lining on these King Engine Bearings rod bearings is a key feature for performance builds. This specialized material is designed to handle the higher loads and temperatures found in racing applications, offering improved durability and reduced friction compared to standard bearings. These bearings are specifically sized at +0.25 inch, meaning they are intended for use with crankshafts that have been machined to this specific undersize. This set is built for Honda J30 and J35 engines, which are found in a wide range of Acura and Honda vehicles.

When you're rebuilding an engine, especially for performance or racing, the connecting rod bearings are critical. They sit between the connecting rod and the crankshaft, allowing the rod to rotate smoothly while handling significant forces. King's XP series bearings, like this set, use a tri-metal construction with a hardened steel backing for strength and the P-Max lining for superior wear resistance and embeddability. This means they can better tolerate dirt and debris that might get into the oil system, offering a bit more forgiveness in demanding conditions.

This set is a solid option for anyone looking to refresh or build a performance J-series engine. Remember that installing bearings sized at +0.25 requires the crankshaft journals to be machined to that exact size. Always ensure your oil clearances are within the manufacturer's specifications after installation.