ACL Bearings 8B634H-009 Race Series Rod Bearing Set .009" Oversize Small Block Ford

ACL Race Series engine rod bearings are designed for high performance race engines, featuring unique design, metallurgy and engineering to deliver the best high performance race bearing your engine can depend on. This set is manufactured in .009" oversize for Small Block Ford 221, 255, 260, 289, and 302 ci V8 engines.

Key Features:

• Trimetal construction with lead, tin, copper and nickel for superior strength and seizure resistance
• Increased eccentricity to improve shape adaptation and compensate for bore distortion at high speed operation, assisting in the formation of hydrodynamic oil film
• Manufactured to exacting tolerances with micron tolerance machining and precision measurement systems for consistent accuracy in wall thickness and crush, ensuring reliable fit and consistent clearances
• Standard components in race engines that have set records and won championships from Mexico to Bonneville, from sport compact drift racing to NASCAR, IHRA and NHRA competitions

ACL Race Series performance bearings are engineered for extreme endurance under harsh conditions, including high RPMs and big boost, where fatigue, stress wear, and failure are minimized through ACL's top of the line metallurgy. The H-Series designation identifies these as ACL's premium race bearing line, trusted by professional engine builders worldwide.

Note: Engine bearings require proper tolerance measurement before purchase. Consult a professional engine builder if you are unsure what size bearings your build requires.