BMW N63 S63 S63TU King Main Bearing Set Standard Size

All King Bearings are specifically engineered to withstand the highest loads and RPMs generated by today’s top competition engines. All King Performance Engine Bearings feature:

• “Bull’s Eye Tolerance”. King engine bearings have the closest wall tolerances in the industry, with all shells matched to 0.0001".
• Increased Height. Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM.
• Improved Oiling. Mains feature enlarged, chamfered oil holes.
• Medium Eccentricity. This enables optimum load distribution and improved oiling.
• Dowel Holes. Most rod bearings are available with or without dowel holes.
• Narrowed Design. Mains and rods are narrowed for large-radius crankshafts.

We offer the industry’s widest selection of sizes, including special clearance options. With more choices than ever, you’ll find the right King High Performance Engine Bearings for your most demanding applications.

Construction

Bi-metal aluminum silicon alloy featuring fine micro-bore finish

Features

• 0.015" thick top layer for superior macro particle embedability and conformability
• 40 Vickers hardness to resist overlay migration and extrusion
• 450°F heat threshold for superior protection against friction and overheating
• Mains are 3/4 grooved for improved oiling to the rod journals