ACL Bearings 4B7267HX-STD Race Series HX Connecting Rod Bearing Set Ford Duratec/EcoBoost 1.6L 4-Cylinder

The ACL 4B7267HX-STD is a Race Series HX connecting rod bearing set engineered for the Ford Duratec and EcoBoost 1.6L 4-cylinder engine. As a premium Trimetal performance bearing, it delivers the strength and precision demanded by high-output and high-revving engine builds.

The HX designation indicates these bearings are machined 0.001" thinner than standard, providing increased oil clearance at the rod journal — a popular specification for performance and forced-induction engine builds where additional lubrication film is desired.

ACL Race Series Features:

• Trimetal construction — unique combination of design, metallurgy, and engineering for high-performance durability
• High-strength overlay plate with reduced thickness for improved fatigue resistance under sustained high-RPM loads
• Hardened steel backs on all rod bearings to improve support of the bearing lining and assist with retention in the housing
• Increased crush for improved bearing retention in the connecting rod bore
• No flash plating on the back — eliminates barrier to heat transfer and maximizes grip between bearing and housing
• Increased eccentricity to compensate for bore distortion at high RPM and assist in the formation of hydrodynamic oil films
• Standard (STD) size — fits unmodified standard-diameter rod journals

ACL Race Series bearings are a proven choice for engine builders seeking a performance upgrade over OEM bearings, whether for a street performance rebuild or a dedicated competition engine. Consult with your machine shop to confirm the correct clearance specification before installation.