Ditch the stock failures. The ACL Race Series 6B2150HSTD connecting rod bearings are the only choice for high-stress Ford 6-cylinder performance builds—from X-Flow to the turbo Barra. This is the foundation you need to handle serious boost and revs. Designed with F781 tri-metal material and a high-strength overlay for maximum fatigue resistance, these bearings are engineered in Australia to handle the brutal conditions of the local street and track scene.

Key Features

• Tri-Metal F781 construction for superior strength and seizure resistance.

• High-strength overlay with reduced thickness to boost fatigue properties.

• Increased crush for improved bearing retention and heat transfer.

• Enlarged ID chamfers to clear large fillet radii on performance cranks.

• Increased eccentricity to compensate for bore distortion at high RPM.

• Standard (STD) size for stock journal dimensions.

Full Specs Brand: ACL Race Series Part Number: 6B2150HSTD Size: Standard (STD) Shaft Diameter Min/Max: 53.934mm / 53.945mm (2.1234” / 2.1238”) Tunnel Diameter Min/Max: 56.871mm / 56.891mm (2.2390” / 2.2398”) Max Wall at Crown: 1.455mm (0.0573”) Max Overall Length: 20.57mm (0.8098”) Material: F781 Tri-Metal

Available Options

• 6B2150H-STD: Standard Size (This Listing)

• 6B2150HX-STD: Standard Size with Extra Clearance

• Other Oversizes: .001", .010", .020"